HOME

TheInfoList



OR:

The MG 34 (shortened from German: ''Maschinengewehr 34'', or "machine gun 34") is a
German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ge ...
recoil-operated air-cooled general-purpose machine gun, first tested in 1929, introduced in 1934, and issued to units in 1936. It introduced an entirely new concept in automatic firepower – the ''Einheitsmaschinengewehr'' (Universal machine gun) – and is generally considered the world's first general-purpose machine gun (GPMG). Both the MG 34 and MG 42 were erroneously nicknamed "Spandau" by Allied troops, a carryover from the World War I nickname for the MG 08, which was produced at the Spandau Arsenal. The versatile MG 34 was chambered for the full-power
7.92×57mm Mauser The 7.92×57mm Mauser (designated as the 8mm Mauser or 8×57mm by the SAAMI and 8 × 57 IS by the C.I.P.) is a rimless bottlenecked rifle cartridge. The 7.92×57mm Mauser cartridge was adopted by the German Empire in 1903–1905, and was the Ge ...
rifle cartridge, and was arguably the most advanced machine gun in the world at the time of its deployment. The MG 34 was envisaged and well developed to provide portable
light Light or visible light is electromagnetic radiation that can be perceived by the human eye. Visible light is usually defined as having wavelengths in the range of 400–700 nanometres (nm), corresponding to frequencies of 750–420 t ...
and medium machine gun infantry cover, anti-aircraft coverage, and even sniping ability. Its combination of exceptional mobility – being light enough to be carried by one man – and high rate of fire (of up to 900 rounds per minute) was unmatched. It entered service in great numbers from 1939. Nonetheless, the design proved to be rather complex for mass production, and was supplemented by the cheaper and simpler to mass produce
MG 42 The MG 42 (shortened from German: ''Maschinengewehr 42'', or "machine gun 42") is a German recoil-operated air-cooled general-purpose machine gun used extensively by the Wehrmacht and the Waffen-SS during the second half of World War II. Enter ...
, though both remained in service and production until the end of the war.


History


Before World War I

Even before
World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, ...
, the German military was already looking forward to replacing the heavy machine guns which proved to be such a success in that war. The
MG13 The MG 13 (shortened from German Maschinengewehr 13) is a German light machine gun developed by converting the Dreyse Model 1918 heavy water-cooled machine gun into an air-cooled version. History Dreyse Model 1918 Machinegun: In 1907 Louis Schmeis ...
was one of the first developments toward a goal of producing a weapon that could perform multiple roles, rather than just one. The MG13 was the result of reengineering the Dreyse Water-cooled machine gun to fit the new requirement. The twin-barreled Gast gun was developed with the goal of providing a high cyclic rate of fire weapon for anti-aircraft use and was reported to have reached cyclic rates of fire as high as 1,600 rounds per minute. The ''Einheitsmaschinengewehr'' concept required that the operator could radically transform the machine gun for several purposes by changing its mount, sights and feed mechanism. One of the ''Einheitsmaschinengewehr'' roles was to provide low-level anti-aircraft coverage. A high cyclic rate of fire is advantageous for use against targets that are exposed to a general-purpose machine gun for a limited time span, like aircraft or targets that minimize their exposure time by quickly moving from cover to cover. For targets that can be fired on by a general-purpose machine gun for longer periods than just a few seconds, the cyclic firing rate becomes less important.


After World War I

After World War I the German military faced restrictions imposed by the
Treaty of Versailles The Treaty of Versailles (french: Traité de Versailles; german: Versailler Vertrag, ) was the most important of the peace treaties of World War I. It ended the state of war between Germany and the Allied Powers. It was signed on 28 June 1 ...
. The treaty restricted the German ''
Reichswehr ''Reichswehr'' () was the official name of the German armed forces during the Weimar Republic and the first years of the Third Reich. After Germany was defeated in World War I, the Imperial German Army () was dissolved in order to be reshape ...
'' (Realm Defence) to maximally stockpiling 792 heavy (bulky hard-to-maneuver water-cooled) machine guns and 1,134 light machine guns and actual production of machine guns and development of sustained fire weapons were prohibited. From 1933 Nazi Germany was committed to repudiating the Treaty of Versailles and its restrictions. As part of a (clandestine) military revitalization program the German military sought avenues to get around restrictions imposed by the treaty by resorting to innovative weapon design and engineering, German arms designers working abroad and other foreign assistance.


Development of the MG 34

In 1932 the ''
Reichswehrministerium The Ministry of the Reichswehr or Reich Ministry of Defence (german: Reichswehrministerium) was the defence ministry of the Weimar Republic and the early Third Reich. The 1919 Weimar Constitution provided for a unified, national ministry of defen ...
'' (Ministry of the Reichswehr) ordered several companies, including
Rheinmetall Rheinmetall AG is a German automotive and arms manufacturer, headquartered in Düsseldorf, Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in ...
, to develop a new ''Einheitsmaschinengewehr'' (Universal machine gun) to replace several role specific machine guns then in German use. The following specifications for the gun were set: * light weight * simplified operation * quick-change barrel * single-shot capability as well as two (fast and slower) cyclic rates The MG 34 was based on a 1930 Rheinmetall design under the direction of Louis Stange at
Rheinmetall Rheinmetall AG is a German automotive and arms manufacturer, headquartered in Düsseldorf, Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in ...
's
Sömmerda Sömmerda is a town near Erfurt in Thuringia, Germany, on the Unstrut river. It is the capital of the district of Sömmerda. History Archeological digs in the area that is now Sömmerda, formerly Leubingen, have uncovered prominently buried h ...
office, the MG 30. The Swiss and Austrian militaries had both licensed and produced the MG 30 from Rheinmetall shortly after it was patented and the gun started to enter service in Switzerland. The technical challenges in meeting the ''Reichswehrministerium'' specifications were broader than the gun development itself. It also encompassed various mounts and other accessories that had to adapt that gun to different roles. The MG 30 design was adapted and modified by
Heinrich Vollmer Heinrich Vollmer (1885 in Altdorf, Esslingen–1961 in Tübingen) was a German small-arms designer. Vollmer began his manufacturing career by making parts for the German copies of the Maxim gun during the First World War. His first innovation wa ...
of
Mauser Mauser, originally Königlich Württembergische Gewehrfabrik ("Royal Württemberg Rifle Factory"), was a German arms manufacturer. Their line of bolt-action rifles and semi-automatic pistols has been produced since the 1870s for the German arm ...
Industries. Vollmer originally designed the feed mechanism to accept
MG 13 The MG 13 (shortened from German Maschinengewehr 13) is a German light machine gun developed by converting the Dreyse Model 1918 heavy water-cooled machine gun into an air-cooled version. History Dreyse Model 1918 Machinegun: In 1907 Louis Schmeis ...
/ MG 15 inspired 75-round ''Patronentrommel 34'' spring-loaded saddle-drum magazines. The ''Patronentrommel 34'' was a rather complex magazine for which a filling device had to be used and requiring ordnance personnel and a special tool to optimize the spring tension for reliable feeding. Users were ordered not to adjust the drum spring tension. The result, the multiple role capable MG 34, wherein Rheinmetall's Sömmerda plant had a significant influence, reflected the ''Reichswehrministerium'' specifications. In 1937 the feed was redesigned to use reusable non-disintegrating ''Gurt 33'' and ''Gurt 34'' metal belts and a 50-round ''Gurttrommel 34'' (belt drum). The feeding system was based on the direct push-through of the cartridge out of the link into the gun's chamber. Accordingly, the link had to be of the half-open type to enable the motion of the bolt through the link. Vollmer also increased the rate of fire. The MG 34's double crescent trigger dictated either semiautomatic or fully automatic firing modes. The capability to use the previous 75-round ''Patronentrommel 34'' saddle-drum magazines (with a required change of the feed cover for a ''Trommelhalter'' magazine holder) was retained. As the MG 34 was technically based on and featured design elements of several other machine guns, the German arms industry under the guidance of the ''
Waffenamt ''Waffenamt'' (WaA) was the German Army Weapons Agency. It was the centre for research and development of the Weimar Republic and later the Third Reich for weapons, ammunition and army equipment to the German Reichswehr and then Wehrmacht ...
'' (German Army Weapons Agency) negotiated and worked out complex royalties and patents matters regarding the MG 34 to every involved side's satisfaction. Before large scale production commenced, 2,300 MG 34s in two main early versions, slightly more complex and different from the final design, were produced between 1935 and 1939. At the time it was introduced, it had a number of advanced features and the general-purpose machine gun concept that it aspired to was an influential one. During the period between 1934 and the adoption of the final version the ''Waffenamt'' realized the MG 34 ''Einheitsmaschinengewehr'' was too complex and expensive to mass-produce and started looking for ways to simplify and rationalize the technical concept. In 1937, the ''Waffenamt'' requested three companies to submit new more economical ''Einheitsmaschinengewehr'' designs.


Adoption of the MG 34 and next ''Einheitsmaschinengewehr'' generation

The final version of the MG 34 was eventually adopted for main service on 24 January 1939. The MG 34 was the mainstay of German Army support weapons from the time of its first pre large scale production issue in 1935 until 1942, when it was supplanted by the next ''Einheitsmaschinengewehr'' generation Maschinengewehr 42 or
MG 42 The MG 42 (shortened from German: ''Maschinengewehr 42'', or "machine gun 42") is a German recoil-operated air-cooled general-purpose machine gun used extensively by the Wehrmacht and the Waffen-SS during the second half of World War II. Enter ...
. Although the MG 34 was fairly reliable — it was sensitive to extreme weather conditions, dirt and mud — when competently maintained and dominant on the battlefield. Its dissemination throughout the German forces was hampered due to its elaborately milled precision engineering with tight tolerances and use of high-quality metal alloys, which resulted in high machine time, skilled labor requirements, production costs and a relatively slow rate of production. MG 34 production during the war amounted to over 350,000 units (12,822 units in 1939, 54,826 in 1940, 80,952 in 1941, 63,163 in 1942, 48,802 in 1943, 61,396 in 1944, and 20,297 in 1945). Attempts to incrementally improve the fundamental drawbacks of the basic MG 34 design failed. For its successor, the faster firing, less complex, sensitive and expensive MG 42, the Germans instead used mass production techniques similar to those that created the MP 40 submachine gun. In 1943, MG 42 production surpassed MG 34 production and continued to do so until the end of the war. The Germans nevertheless continued widespread production of MG 34s in parallel until the end of the war.


Combat use

In the field, the weapon could operate in offensive or defensive applications. The offensive model, with a mobile soldier, used either a 50-round ''Gurttrommel'' or a 75-round ''Patronentrommel 34''. In a stationary defensive role, the gun was mounted on a bipod or tripod and fed by a non-disintegrating metal ammunition belt. Belts were carried in boxes of five. Each belt contained 50 rounds. Belt lengths could be linked for sustained fire. During sustained fire, barrels would have to be changed at intervals due to the heat generated by the rapid rate of fire. If the barrels were not changed properly, the weapon would misfire. Changing barrels was a rapid process for the trained operator and involved disengaging a latch and swinging the receiver to the right for the insertion of a new barrel into the barrel shroud. Accordingly, stationary defensive positions required more than one operator.


Europe

The MG 34 was used as the primary infantry machine gun, and remained as the primary armored vehicle defensive weapon as it took limited space to change barrels inside a vehicle. The MG 34 was intended to replace the
MG 13 The MG 13 (shortened from German Maschinengewehr 13) is a German light machine gun developed by converting the Dreyse Model 1918 heavy water-cooled machine gun into an air-cooled version. History Dreyse Model 1918 Machinegun: In 1907 Louis Schmeis ...
and other older machine guns, but these were still being used in World War II as demand was never met. It was intended to be replaced in infantry service by the
MG 42 The MG 42 (shortened from German: ''Maschinengewehr 42'', or "machine gun 42") is a German recoil-operated air-cooled general-purpose machine gun used extensively by the Wehrmacht and the Waffen-SS during the second half of World War II. Enter ...
, but there were never enough MG 42s, and MG 34s continued to be used in all roles until the end of
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...
. It was the standard machine gun of the
Kriegsmarine The (, ) was the navy of Germany from 1935 to 1945. It superseded the Imperial German Navy of the German Empire (1871–1918) and the inter-war (1919–1935) of the Weimar Republic. The was one of three official branches, along with the a ...
(German Navy) and was also used as a secondary weapon on most German tanks and other armoured vehicles used during World War II.


East Asia

MG 34s captured by the British and Soviet armies were sent to both
Chinese Nationalist Chinese nationalism () is a form of nationalism in the People's Republic of China (Mainland China) and the Republic of China on Taiwan which asserts that the Chinese people are a nation and promotes the cultural and national unity of all Chi ...
and
Chinese Communist The Chinese Communist Party (CCP), officially the Communist Party of China (CPC), is the founding and sole ruling party of the People's Republic of China (PRC). Under the leadership of Mao Zedong, the CCP emerged victorious in the Chinese Ci ...
forces during World War II and the
Chinese Civil War The Chinese Civil War was fought between the Kuomintang-led government of the Republic of China and forces of the Chinese Communist Party, continuing intermittently since 1 August 1927 until 7 December 1949 with a Communist victory on main ...
. The French army sent captured MG 34s to
Indochina Mainland Southeast Asia, also known as the Indochinese Peninsula or Indochina, is the continental portion of Southeast Asia. It lies east of the Indian subcontinent and south of Mainland China and is bordered by the Indian Ocean to the west an ...
during the Indochina War. Some models captured from the Germans by the Soviets or manufactured in Czechoslovakia post-WWII were supplied to the
People's Liberation Army The People's Liberation Army (PLA) is the principal military force of the China, People's Republic of China and the armed wing of the Chinese Communist Party (CCP). The PLA consists of five Military branch, service branches: the People's ...
/
People's Volunteer Army The People's Volunteer Army (PVA) was the armed expeditionary forces deployed by the People's Republic of China during the Korean War. Although all units in the PVA were actually transferred from the People's Liberation Army under the order ...
, PAVN and the
Viet Cong , , war = the Vietnam War , image = FNL Flag.svg , caption = The flag of the Viet Cong, adopted in 1960, is a variation on the flag of North Vietnam. Sometimes the lower stripe was green. , active ...
during the Cold War. Several hundred more MG 34s that were in use with these groups were taken from either French or other Western nations fielding captured German weapons fighting against them in colonial wars or anti-communist conflicts.


Small arms doctrine

The German tactical infantry doctrine of the era based a (10-man ''Gruppe'')
squad In military terminology, a squad is among the smallest of military organizations and is led by a non-commissioned officer. NATO and US doctrine define a squad as an organization "larger than a team, but smaller than a section." while US Army d ...
's firepower on the general-purpose machine gun in the light machine gun role. The advantage of the general purpose machine gun concept was that it added greatly to the overall volume of fire that could be put out by a squad-sized unit. It was possible for operating crews to lay down a non-stop barrage of fire, pausing only when the barrel had to be replaced. This allowed the MG 34 to tie up significantly larger numbers of enemy troops than was otherwise possible. The Americans and the British trained their troops to take cover from the fire of an MG 34, and assault the position during the small time window of barrel replacement. The German military instructed that sustained cyclic rate fire must be avoided at all costs. In the bipod-mounted light machine gun role, MG 34 users were trained to fire short bursts and strive to optimize their aim between bursts fired in succession. According to comparative tests by the US military under battle conditions, 7 to 10 rounds bursts with 15 bursts in a minute were most effective. For its medium machine gun role, the MG 34 was matched to the newly developed ''Lafette 34'' tripod. In the tripod-mounted medium machine gun role, general-purpose machine gun users were trained to fire short bursts and bursts of 20 to 50 rounds and strive to optimize their aim between bursts fired in succession. As a consequence of factors like the time spent reloading, aiming, changing hot barrels if necessary to allow for cooling, the MG 34's practical effective rate of fire was 150 rounds per minute. The
Allied nations The Allies, formally referred to as the United Nations from 1942, were an international military coalition formed during the Second World War (1939–1945) to oppose the Axis powers, led by Nazi Germany, Imperial Japan, and Fascist Ita ...
' infantry doctrines of World War II based a squad's/rifle section's firepower centered on the rifleman and/or a magazine fed light machine gun (BAR, Bren, DP-27/DPM, FM 24/29), and they utilised weapons with cyclic fire rates of typically 450–600 rounds per minute.


Light machine gun fire support role

A German infantry ''Gruppe'' (squad) at the start of the war consisted of ten men: a non-commissioned officer or '' Unteroffizier'' squad leader, deputy squad leader, a three-man machine gun team (machine gunner, assistant gunner/loader and ammunition carrier) and five riflemen. The riflemen carried additional ammunition for the machine gun,
hand grenade A grenade is an explosive weapon typically thrown by hand (also called hand grenade), but can also refer to a shell (explosive projectile) shot from the muzzle of a rifle (as a rifle grenade) or a grenade launcher. A modern hand grenade ...
s, explosive charges or a machine gun tripod as required and provided security and covering fire for the machine gun team. A full ''Gruppe'' (squad) carried 1,800 rounds of ammunition for the machine gun between them.


Medium machine gun fire support role

In the German heavy machine gun (HMG)
platoon A platoon is a military unit typically composed of two or more squads, sections, or patrols. Platoon organization varies depending on the country and the branch, but a platoon can be composed of 50 people, although specific platoons may rang ...
s, each platoon served four MG 34/MG 42 machine guns, used in the sustained fire mode mounted on tripods. In 1944, this was altered to six machine guns in three sections with two seven-man heavy machine gun squads per section as follows: *Squad leader (NCO)
MP40 The MP 40 (''Maschinenpistole 40'') is a submachine gun chambered for the 9×19mm Parabellum cartridge. It was developed in Nazi Germany and used extensively by the Axis powers during World War II. Designed in 1938 by Heinrich Vollmer with i ...
*Machine gunner (private) MG 34/MG 42 and Walther P38 *Assistant gunner (private) pistol *Three riflemen (privates) rifles *Horse leader for horse, cart and trailer (private) rifle The optimum operating crew of an MG 34 in its medium machine gun role was six men: the squad leader, the machine gunner who carried and fired the gun, the assistant gunner/loader who carried the tripod, and three riflemen who carried 1,800 rounds of ammunition between them, spare barrels, entrenching tools, and other items. To enable the machine gun for its long-range
direct fire Direct fire or line-of-sight fire refers to firing of a ranged weapon whose projectile is launched directly at a target within the line-of-sight of the user. The firing weapon must have a sighting device and an unobstructed view to the target, w ...
and
indirect fire Indirect fire is aiming and firing a projectile without relying on a direct line of sight between the gun and its target, as in the case of direct fire. Aiming is performed by calculating azimuth and inclination, and may include correcting aim ...
support roles, optical sights could be added to a ''Zielfernrohrhalter'' (optical sight mounting bracket) on the
tripod A tripod is a portable three-legged frame or stand, used as a platform for supporting the weight and maintaining the stability of some other object. The three-legged (triangular stance) design provides good stability against gravitational loads ...
, allowing operating crews to continue using advanced planned and unplanned firing methods developed during World War I, though
plunging fire Plunging fire is a form of indirect fire, where gunfire is fired at a trajectory to make it fall on its target from above. It is normal at the high trajectories used to attain long range, and can be used deliberately to attack a target not susce ...
or
indirect fire Indirect fire is aiming and firing a projectile without relying on a direct line of sight between the gun and its target, as in the case of direct fire. Aiming is performed by calculating azimuth and inclination, and may include correcting aim ...
methods were not as commonly used by machine gunners during World War II as they were during World War I.


Design details


Operating system

The MG 34 fires from an
open bolt A firearm is said to fire from an open bolt if, when ready to fire, the bolt and working parts are held to the rear of the receiver, with no round in the chamber. When the trigger is actuated, the bolt travels forward, feeds a cartridge from t ...
and this format both keeps the barrel open at both ends after firing ceases, allowing airflow through it and helping it to cool faster, and meanwhile retains the next unfired bullet outside the chamber until the trigger is squeezed again; and thus the cartridges are protected from the risk of cook-offs from high chamber temperatures after long bouts of sustained automatic fire. The firearm was designed with a rotating bolt operated by short recoil aided by a muzzle booster. When the firearm is ready to fire the bolt is pulled back to the rear and is held back by the sear. With the pull of the trigger the sear disengages sending the bolt forward under pressure from the recoil spring. A cartridge is stripped from the magazine or belt and the round is pushed into the chamber. As the bolt moves forward into battery the bolt rotates engaging the locking lugs and chamber locking the bolt to the barrel. The striker strikes and ignites the primer and the round is fired. The recoil causes the barrel and bolt to move backwards a short distance. The rearward movement of the barrel causes the rotating bolt to rotate back disengaging the locking lugs and unlocking the bolt from the barrel. The barrel returns to its forward position while the bolt recoils to its rear position. The spent cartridge case is ejected downward through an ejection port normally covered by a spring-loaded dust cover at the bottom of the receiver, just in front of the trigger group and the cycle can begin anew. The spring-loaded dust cover automatically opens when the gun is fired, but the user has to close it after firing to prevent dirt entering the receiver through the open port.


Sights

The MG 34 came with a standard
iron sight Iron sights are a system of physical alignment markers (usually made of metallic material) used as a sighting device to assist the accurate aiming of ranged weapons (such as a firearm, airgun, crossbow or even compound bow), or less commonly ...
line consisting of a notched 'V' sight mounted to a post in the rear and a single blade at the front. The sight came calibrated for ranges between in meter increments. The standard sight line had a sight radius. The MG 34 could accept a variety of different sighting systems, such as a spider web-type anti-aircraft sight or telescopic sights for use in specialty roles. An active infrared device, intended primarily for night use, and consisting of a specialized mount, active infrared spotlight and accompanying infrared image converter was developed that could be used with the MG 34 and MG 42. In the later stages of World War II the bulky ''Fahr- und Zielgerät FG 1250'' (driving and aiming device
FG 1250 The FG 1250 or ''Fahr- und Zielgerät FG 1250'' (driving and aiming device FG 1250) was a German active infrared night-vision device mounted on tanks and other armored vehicles. It was developed by Ing Gaertner of the German optics company Carl Ze ...
) active infrared unit was paired on Sd.Kfz. 251/1 ''Falke'' half-track armored personnel carriers to some MG 34 and MG 42 machine guns.


Feeding

left, upMethod of joining German non-disintegrating metallic-link ammunition machine gun belts The MG 34 could use non-disintegrating metallic-link belts, which have links that wrap around the cartridge case and are linked by a coiling wire on each side. The belts are intended for multiple reuse. Operation through the feed block is in one step by a feed arm housed in the feed cover. According to U.S. Ordnance Department tests, performed in 1942, the MG 34 was capable of lifting 75 rounds of belted ammunition during firing. The feeding system was based on the direct push-through of the cartridge out of the link into the gun's chamber. Accordingly, the link had to be of the half-open type to enable the motion of the bolt through the link. During World War II the ''Gurt 34/41''-belt family was introduced. ''Gurt 34/41'' belt links and wire spirals were made of thinner material — the ''Gurt 34'' links were made of and ''Gurt 34/41'' links of thick stamped steel sheet metal — that saved ⅓ of metal and counterintuitively yielded improved performance. Belts were supplied in a fixed length of 50 rounds, but could be linked up to make longer belts for sustained firing. Ammunition boxes contained 250 rounds in five 50-round belts. A 250-round ''Patronengurt 33'' belt was also issued to machine guns installed in fixed emplacements such as bunkers. ''Patronenkasten 34'' and ''Patronenkasten 41''
ammunition box An ammunition box or cartridge box is a container designed for safe transport and storage of ammunition. It is typically made of metal and labelled with caliber, quantity, and manufacturing date or lot number. A rubber gasket is commonly fou ...
es could hold up to 300 belted rounds. The ''Patronenkasten'' could contain an ''Einführstück'' belt starter-segment.
The 50-round ''Gurttrommel'' assault drum designed to be clipped to the left side of the gun was an alternative feed option. It was not a true magazine but held a coiled 50-round belt and corresponding ''Einführstück'' starter-segment preventing it from snagging, twisting and getting stuck during mobile assaults. The ''Gurttrommel'' belt container was commonly used until the end of World War II, with the MG 34 and MG 42.
The 75-round ''Patronentrommel 34'' "double drum" magazine was the original pre-redesign feed method. This double drum or saddle magazine type was introduced on the
MG 13 The MG 13 (shortened from German Maschinengewehr 13) is a German light machine gun developed by converting the Dreyse Model 1918 heavy water-cooled machine gun into an air-cooled version. History Dreyse Model 1918 Machinegun: In 1907 Louis Schmeis ...
, but the MG 13 magazine and ''Patronentrommel 34'' were not interchangeable. After the MG 34 redesign, that enabled the MG 34 to use belted ammunition, the ''Patronentrommel 34'' became a rare alternative feed option. The ''Patronentrommel 34'' could be used only together with a ''Trommelhalter'' magazine holder that substituted the normal feed cover, thereby switching the gun from belt feeding to ''Patronentrommel 34'' "double drum" magazine feeding. It contained 75 loose rounds in two spring-powered spirals twisting in opposite direction, feeding the chamber from opposite sides in turn. The ''Patronentrommel 34'' was rather complicated and inconvenient to (re)load, adjust to work reliably, and in use. It had to be loaded by a special ''Trommelfüller 34'' drum filler machine. This drum filler machine could be stored and carried in a ''Patronenkasten 34'' ammunition box. An MG 34 configured to use the 75-round magazine could not be returned to belt-feed mode without substituting the ''Trommelhalter'' magazine holder for the normal feed cover. By the end of 1938 the ''Patronentrommel 34'' and its accessories were officially withdrawn. This induced that ''Patronentrommel 34'' use by infantry had ceased by 1941, with some mainly in the low level anti-aircraft role remaining in use on armoured vehicles. The MG 34 tended to fire at a somewhat higher cyclic rate when fed by a 75-round ''Patronentrommel 34'' than when fed by a standard belt, due to the spring loading of the former.


Barrel

The barrel of the MG 34 could be quickly changed to avoid overheating during sustained fire by the machine gun crew and weighed . The service life of an MG 34 barrel was about 6,000 rounds assuming the barrel was used according to the regulations, which prohibited rapid or sustained fire beyond 250 rounds. In cases of emergency the rapid rate of a barrel was limited to 400 rounds. During a barrel change, the operator would disengage a latch on the left side of the receiver which held the receiver to the barrel sleeve. The entire receiver section could then pivot off to the right on its latitudinal axis, allowing the operator to pull the (hot) barrel out the back of the sleeve. A new cool(er) barrel would then be put in the back of the sleeve, and the receiver rotated back in line with the barrel sleeve and latched. The machine gun crew member responsible for a hot barrel change was issued protective
asbestos Asbestos () is a naturally occurring fibrous silicate mineral. There are six types, all of which are composed of long and thin fibrous crystals, each fibre being composed of many microscopic "fibrils" that can be released into the atmosphere b ...
mitts to prevent burns to the hands. The entire process took 10 to 15 seconds when performed by a well-trained crew, causing minimal downtime in battle. For carrying and protecting spare barrel units, consisting of a barrel and its locking piece, a ''Laufschützer 34'' (barrel protector) was used as a field accessory. When closed the ''Laufschützer 34'' looked like a tubular container with mountings at its ends to attach a carrying/shoulder strap. During a barrel change a cool MG 34 barrel unit coming out of the ''Laufschützer 34'' can be inserted in the machine gun and the replaced hot barrel unit can be placed in or on the opened ''Laufschützer 34'' to cool down. Later in the war the universal ''Laufschützer 43'' was introduced that could be used with MG 43 and MG 42 barrel units.


Trigger

A notable feature of the MG 34 was its double-crescent trigger, which provided select fire capability without the need for a fire mode selector switch. Pressing the upper segment of the trigger produced semi-automatic fire, while holding the lower segment of the trigger produced fully automatic fire. Though considered innovative at the time, the feature was eliminated due to its complexity on the MG 34's successor, the MG 42. In the light machine gun role, it was used with a bipod and weighed only . In the medium machine gun role, it could be mounted on one of two tripods, a smaller one weighing , the larger ''Lafette 34'' .


''Lafette 34'' tripod

For the medium machine gun role a larger tripod, the MG 34 ''Lafette 34'', included a number of features, such as recoil absorbing buffer springs, a ''Zielfernrohrhalter'' (optical sight mounting bracket) for mounting an MG Z 34 or MG Z 40 periscope-type 4× power
telescopic sight A telescopic sight, commonly called a scope informally, is an optical sighting device based on a refracting telescope. It is equipped with some form of a referencing pattern – known as a '' reticle'' – mounted in a focally appropriate ...
containing special sighting equipment for
indirect fire Indirect fire is aiming and firing a projectile without relying on a direct line of sight between the gun and its target, as in the case of direct fire. Aiming is performed by calculating azimuth and inclination, and may include correcting aim ...
or the late World War II MG Z 44, designed for direct fire only. Fitting such an optical sight enabled the machine gun to deliver direct fire out to . An accessory to lengthen these sights' periscope was available, allowing the use of them behind cover. The ''Lafette'' could be set up in a prone, kneeling or a high position and weighed on its own. The legs could be extended with a ''Lafetteaufsatzstück'' to allow it to be used in the low level anti-aircraft role, and when lowered, it could be placed to allow the gun to be fired "remotely" while it swept an arc in front of the mounting with fire. Mounted to the ''Lafette'' and aimed through the MG Z 34 or MG Z 40 telescopic sight the effective range of the MG 34 could be extended out to when fired indirectly. The indirect firing method exploits the ''s.S. Patrone'' useful maximum range, that is defined by the maximum range of a small-arms projectile while still maintaining the minimum kinetic energy required to put unprotected personnel out of action, which is generally believed to be 15 kilogram-meters (147 J / 108 ft⋅lbf). The ''Lafette 34'' tripod also had a bolt box to store a (spare) bolt. Another unique feature of German World War II machine guns was the ''Tiefenfeuerautomat'' feature on the ''Lafette 34'' tripod. If selected, this feature mechanically controlled the rise and fall of the gun, elevating the gun for five rounds and then depressing it for four rounds. It lengthened the beaten zone by walking the fire in wave like motions up and down the range in a predefined area. The length of the beaten zone could be set on the ''Tiefenfeuerautomat''. E.g., being unsure whether the real distance was , the gunner could make the mount do an automatic sweep between the elevations for and back. This sweeping of a selected beaten zone continued as long as the gun fired. The ''Lafette 34'' had a ''Richt- und Überschießtafel'' (Overhead firing table) riveted to the rear body of the searchfire mechanism from the very start of production until the very end of it. In the later stages of World War II ballistic correction directions were added for overshooting friendly forces with S.m.E. – ''Spitzgeschoß mit Eisenkern'' (spitzer with iron core) ammunition of which the external ballistic behaviour started to significantly deviate from upwards compared to the ''s.S. Patrone'' (s.S. ball cartridge). A trigger handle, which enabled the operator to fire the gun without affecting the stability of the gun's point of aim, was attached to the ''Tiefenfeuerautomat'' searchfire unit. On the ''Lafette 34'' it could be adjusted for both semi-automatic firing and full-automatic firing mode, although some simplified late-war mounts had the trigger configured for full-automatic firing mode only. There were numerous other specialist mounts for the MG 34. The ''Dreibein 34'', for example, was a simple high-standing tripod for mounting the gun in anti-aircraft mode. There were also mounts for bicycles, motorcycle sidecars, tanks and armoured vehicles (ball and pintle mounts), fortress positions, boat decks and even assault gliders. MG 34s were mounted in multiple-gun arrangements, particularly on vehicles, for low level anti-aircraft defence. The MG 34 butt-stock could be easily removed to reduce the space occupied when mounted inside a vehicle. It was produced in various wood and bakelite versions.


Variants


MG 34 based improvement attempts

As the first war experiences in the beginning of World War II proved that a higher cyclic fire rate generates more dispersion of the bullets, MG 34 based prototype guns like the MG 34S were requested. The MG 34S had a shortened and lightened barrel, a stiffer multi strands recoil spring and a better recoil booster to increase the rate of fire. The prototype weapons were developed into the very similar further improved MG 34/41, that could cope with a cyclic firing rate of 1,200 rounds per minute, but its components became highly stressed. The effort to simplify the basic MG 34 and reduce production effort and costs consisted mainly of discarding the possibility of semi-automatic fire, using a trigger group containing many stamped parts, and eliminating some complex machining operations during production. Technically, the ejector assembly was enlarged and strengthened, and the feed mechanism was modified to provide a more secure grip on the cartridge. The weight of the MG 34/41 was 14 kg, slightly more than the original MG 34 version. A limited run of MG 34/41 model guns, was completed and tested in combat trials at the Russian front. These guns exhibited durability problems, which is why the development of MG 34 based incrementally improved guns was discontinued. Instead, the German military preferred the technically fundamentally differing also combat trailed MG 39/41 gun. In early 1942 a further improved model of the MG 39/41 was officially accepted and designated as the MG 42.


MG 34 Panzerlauf

Most German tanks and other armoured vehicles used during World War II used the ''MG 34 Panzerlauf'' or ''MG 34 Panzermantel'' for secondary armament, the Jagdpanzer IV tank destroyer being the exception. The MG 42 was ill-suited for enclosed secondary or coaxial mounting due to the method of barrel change. The MG 42's barrel had to be removed and replaced by sliding the barrel out at an angle such that, when mounted on a tank/armoured vehicle, armour and space would have to be compromised to fit the weapon. Although the MG 34 was older than the (arguably) improved MG 42, its barrel could be swapped in-line with the gun, meaning that the MG 34 was favoured because it was simpler to design mountings for the gun. The MG 34 was also more versatile to feed, for instance using a 75-round ''Patronentrommel 34'' double drum magazine or being select-fire. The main difference of the ''MG 34 Panzerlauf'' and the regular MG 34 was the heavier, almost solid ''Panzermantel'' armored barrel shroud, almost completely lacking the ventilation holes of the regular MG 34. Further the ''MG 34 Panzerlauf'' featured bipod clamps for attaching a bipod and lacked the anti-aircraft sight bracket. When mounted inside the generally limited space inside an armored vehicle, the MG 34 user detachable butt-stock was taken off. A kit for quick conversion to ground use in the light machine gun role was carried inside the tank containing a butt-stock and a combined bipod and front sight assembly. About 50,000 ''MG 34 Panzerlauf'' or ''MG 34 Panzermantel'' were produced.


MG 81

The MG 34 was also used as the basis of a new aircraft-mounted machine gun, the MG 81 machine gun. For this role, the breech was slightly modified to allow feeds from either side, and in one version, two guns were bolted together on a single trigger to form a weapon known as the MG 81Z (for ''Zwilling'', German for "twin" as in twin-mounted). Production of the MG 34 was never enough to satisfy any of its users, and while the MG81 was a significant improvement over the earlier MG 30-based MG 15 and MG 17 guns, these guns were used until the end of the war. As the Luftwaffe lost the battle for air superiority and declined in priority in the German war effort, MG 15s and MG 81s, which were designed as flexibly mounted aircraft machine guns, were modified and adapted for ground use by infantry, with varying degrees of success.


MG34F1 and MG34F2

Norway used and first converted the MG 34 in the 1950s to
.30-06 Springfield The .30-06 Springfield cartridge (pronounced "thirty- aught-six" ), 7.62×63mm in metric notation, and called the .30 Gov't '06 by Winchester, was introduced to the United States Army in 1906 and later standardized; it remained in military use ...
designated as the MG34F1 and later to
7.62×51mm NATO The 7.62×51mm NATO (official NATO nomenclature 7.62 NATO) is a rimless, bottlenecked rifle cartridge. It is a standard for small arms among NATO countries. First developed in the 1950s, the cartridge had first been introduced in U.S. service fo ...
designated as the MG34F2. These converted MG 34's were used by the ''Heimevernet'' (Norwegian Home Guard) until the mid 1990s.


TNW MG34

The TNW MG34 is a closed bolt, semi automatic only version of the MG34 made by TNW firearms, marketed towards civilian collectors, and was manufactured due to the high cost and rarity of the full auto versions. Although they stopped production in 2018, they continue to make part kits for the semi automatic variant of the MG34.


Gallery

File:Mg 34.ogv, US War Department instruction video on the MG 34 from 1943 Image:MG34.jpg, MG 34 bipod and ''Lafette 34'' tripod mounts File:Walki uliczne we wsi na froncie wschodnim (2-1008).jpg, A ''Gurttrommel'' attached to the receiver of an MG 34 on its bipod File:Maskingeværstilling 1940 (5986487283).jpg, ''Lafette 34'' tripod mounted MG 34 setup for its anti-aircraft role File:Waffen-SS soldiers from „Wiking” Division with MG 34 and Kar98k in soviet village.jpg, ''Dreibein 34'' (a simple high-standing anti-aircraft tripod) mounted MG 34 File:Bundesarchiv Bild 101I-028-1632-13, Frankreich, Küstenschutz mit Flak-MG.jpg, ''Zwillingssockel 36'' mounted MG 34s File:Wehrmacht Flugabwehr Airdefence.jpeg, ''Zwillingssockel 36'' mounted MG 34s on a ''Maschinengewehrwagen 36'' File:Mémorial du Souvenir 07.JPG, ''Zwillingssockel 36'' with one mounted MG 34, notice the removed butt-stock


Users

* : supplied by Czechoslovakia * : probably supplied by
Czechoslovakia , rue, Чеськословеньско, , yi, טשעכאסלאוואקיי, , common_name = Czechoslovakia , life_span = 1918–19391945–1992 , p1 = Austria-Hungary , image_p1 ...
. * - Supplied by Germanyduring WWII * * * : produced at
Brno Brno ( , ; german: Brünn ) is a city in the South Moravian Region of the Czech Republic. Located at the confluence of the Svitava and Svratka rivers, Brno has about 380,000 inhabitants, making it the second-largest city in the Czech Republic ...
during
German occupation of Czechoslovakia German(s) may refer to: * Germany (of or related to) ** Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **G ...
. Production continues after the war. * (post-war use on SK-1 armored car) * * * : received 1,000 MG34s in 1954 from Czechoslovakia * * * : supplied by Czechoslovakia * * Used in the Korean War * Used by the NVA and
Vietcong , , war = the Vietnam War , image = FNL Flag.svg , caption = The flag of the Viet Cong, adopted in 1960, is a variation on the flag of North Vietnam. Sometimes the lower stripe was green. , active ...
in the Vietnam War * (Used and first converted to
.30-06 Springfield The .30-06 Springfield cartridge (pronounced "thirty- aught-six" ), 7.62×63mm in metric notation, and called the .30 Gov't '06 by Winchester, was introduced to the United States Army in 1906 and later standardized; it remained in military use ...
designated MG34F1 and later to
7.62×51mm NATO The 7.62×51mm NATO (official NATO nomenclature 7.62 NATO) is a rimless, bottlenecked rifle cartridge. It is a standard for small arms among NATO countries. First developed in the 1950s, the cartridge had first been introduced in U.S. service fo ...
designated MG34F2 by the ''Heimevernet'' until mid 1990s) * * * : supplied by Czechoslovakia * *
Yugoslav Partisans The Yugoslav Partisans,Serbo-Croatian, Macedonian, Slovene: , or the National Liberation Army, sh-Latn-Cyrl, Narodnooslobodilačka vojska (NOV), Народноослободилачка војска (НОВ); mk, Народноослобод� ...


See also

* List of World War II firearms of Germany * MG 30, predecessor *
MG 42 The MG 42 (shortened from German: ''Maschinengewehr 42'', or "machine gun 42") is a German recoil-operated air-cooled general-purpose machine gun used extensively by the Wehrmacht and the Waffen-SS during the second half of World War II. Enter ...
, successor *
MG 3 The MG3 is a small car produced by the Chinese automotive company SAIC. The first generation, marketed as the MG3 SW, is based on the British made Rover Streetwise, which itself was based on the Rover 25, while the second generation, introdu ...
* MG 81 machine gun *
SIG 710-3 The SIG MG 710-3 is a Swiss 7.62 mm general-purpose machine gun (GPMG) designed and manufactured by SIG - Schweizerische Industrie Gesellschaft (currently Swiss Arms AG). The weapon was developed as a commercial venture primarily for export, si ...


References


Sources

* * * * *


External links


MG 34 - Modern Fireams



US Army training video about the MG 34 from YouTube
*


Maschinengewehr 34, Beschreibung, Handhabung und Behandlung, Teil 1, Waffe vom 1.8.40


* ttps://www.relicsww2.net/mg-34-maschinengewehr-34-first-universal-machine-gun/ MG 34 (Maschinengewehr 34) : First universal machine gun {{WWIIGermanInfWeapons 7.92×57mm Mauser machine guns General-purpose machine guns Machine guns of Germany Medium machine guns Short recoil firearms Weapons and ammunition introduced in 1936 World War II infantry weapons of Germany World War II infantry weapons of China World War II machine guns