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M249 SAW
The M249 SAW (Squad Automatic Weapon), formally the Light Machine Gun, 5.56 mm, M249, is the United States Armed Forces adaptation of the Belgian FN Minimi, a light machine gun manufactured by FN Herstal (FN). The M249 SAW is manufactured in the United States by the subsidiary FN Manufacturing LLC, a company in Columbia, South Carolina (FN America), and is widely used in the U.S. Armed Forces. The weapon was introduced in 1984 to address a lack of sustained automatic fire capability at the squad level. The M249 SAW combines the rate of fire of a machine gun with the accuracy and portability of an assault rifle. The M249 SAW is gas operated and air-cooled. It features a quick-change barrel (enabling the operator to rapidly replace an overheated or obstructed barrel) and a folding bipod attached to the front of the weapon (an M192 LGM tripod is also available.) The M249 SAW is normally belt-fed, although it is technically compatible with STANAG magazines (such as those used in ...
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Advanced Combat Optical Gunsight
The Advanced Combat Optical Gunsight (ACOG) is a series of prismatic telescopic sights manufactured by Trijicon. The ACOG was originally designed to be used on the M16 rifle and M4 carbine, but Trijicon has also developed ACOG accessories for other firearms. Models provide fixed-power magnification levels from 1.25× to 6×. ACOG reticles are illuminated at night by an internal tritium phosphor. Some versions have an additional daytime reticle illumination via a passive external fiberoptic light pipe or are LED-illuminated using a dry battery. The first ACOG model, known as the TA01, was released in 1987. History The first ACOG model, known as the TA01, was released in 1987. An example was tested on the Stoner 93 in the early 1990s by the Royal Thai Armed Forces. In 1995, United States Special Operations Command selected the 4×32 TA01 as the official scope for the M4 carbine and purchased 12,000 units from Trijicon. Between 2004 and 2005, the TA31RCO-A4 & M4 (AN/PVQ- ...
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Gas-operated Reloading
Gas-operation is a system of operation used to provide energy to operate locked breech, autoloading firearms. In gas-operation, a portion of high-pressure gas from the cartridge being fired is used to power a mechanism to dispose of the spent case and insert a new cartridge into the chamber. Energy from the gas is harnessed through either a port in the barrel or a trap at the muzzle. This high-pressure gas impinges on a surface such as a piston head to provide motion for unlocking of the action, extraction of the spent case, ejection, cocking of the hammer or striker, chambering of a fresh cartridge, and locking of the action. History The first mention of using a gas piston in a single-shot breech-loading rifle comes from 1856, by the German Edward Lindner who patented his invention in the United States and Britain. In 1866, Englishman William Curtis filed the first patent on a gas-operated repeating rifle but subsequently failed to develop that idea further. Between 1883 ...
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Columbia, South Carolina
Columbia is the List of capitals in the United States, capital city of the U.S. state of South Carolina. With a population of 136,632 at the 2020 United States census, 2020 census, it is List of municipalities in South Carolina, the second-most populous city in South Carolina. The city serves as the county seat of Richland County, South Carolina, Richland County, and a portion of the city extends into neighboring Lexington County, South Carolina, Lexington County. It is the center of the Columbia metropolitan area, South Carolina, Columbia, SC Metropolitan Statistical Area, which had an estimated population of 858,302 in 2023, and is the Metropolitan statistical area, 70th-most populous metropolitan statistical area in the United States. The name Columbia (name), "Columbia", a poetic synonym of "the United States of America", derives from the name of Christopher Columbus, who explored the Caribbean on behalf of the Spanish Crown. The name of the city of Columbia is often abbre ...
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Light Machine Gun
A light machine gun (LMG) is a light-weight machine gun designed to be operated by a single infantryman, with or without an assistant, as an infantry support weapon. LMGs firing cartridge (firearms), cartridges of the same caliber as the other riflemen of the same combat unit are often referred to as squad automatic weapons. Characteristics While early light machine guns fired full-powered rifle cartridges, modern light machine guns often fire smaller-caliber rifle cartridges than medium machine guns – generally the same intermediate cartridge fired by a service's standard assault rifle – and are usually lighter and more compact. Some LMGs, such as the Russian RPK, are modifications of existing designs and designed to share the same ammunition. Adaptations to the original rifle generally include a larger magazine, a heavier barrel to resist overheating, a more robust mechanism to support sustained fire and a bipod. A light machine gun is also defined by its usage as well ...
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FN Minimi
The FN Minimi (short for ; "mini machine gun") is a Belgian 5.56mm or 7.62mm light machine gun, also classified as a squad automatic weapon developed by Ernest Vervier for FN Herstal. Introduced in the late 1970s, it is in service in more than 75 countries. The weapon is manufactured at the FN facility in Herstal and their U.S. subsidiary FN Manufacturing LLC. The Minimi fires from an open bolt. It is an air-cooled, gas operated long-stroke piston weapon that is capable of fully automatic fire only. It can be belt fed or fired from a magazine. The Minimi is configured in several variants: the Standard model as a platoon or squad support weapon, the shortened Para version for paratroopers and the Vehicle model as secondary armament for fighting vehicles. Design details Operating mechanism The Minimi uses a gas-actuated long-stroke piston system. The barrel is locked with a rotary bolt, equipped with two massive locking lugs, forced into battery by a helical camming guide ...
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United States Armed Forces
The United States Armed Forces are the Military, military forces of the United States. U.S. United States Code, federal law names six armed forces: the United States Army, Army, United States Marine Corps, Marine Corps, United States Navy, Navy, United States Air Force, Air Force, United States Space Force, Space Force, and the United States Coast Guard, Coast Guard. Since 1949, all of the armed forces, except the Coast Guard, have been permanently part of the United States Department of Defense. They form six of the eight uniformed services of the United States. Each of the different military services is assigned a role and domain. The Army conducts land operations. The Navy and Marine Corps conduct maritime operations, the Marine Corps specializing in amphibious and maritime littoral operations primarily for supporting the Navy. The Air Force conducts air operations. The Space Force conducts space operations. The Coast Guard is unique in that it specializes in maritime opera ...
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Picatinny Rail
The 1913 rail (MIL-STD-1913 rail) is an American rail integration system designed by Richard Swan that provides a mounting platform for firearm accessories. It forms part of the NATO standard STANAG 2324 rail. It was originally used for mounting of telescopic sights atop the receivers of larger caliber rifles. Once established as United States Military Standard, its use expanded to also attaching other accessories, such as: iron sights, tactical lights, laser sights, night-vision devices, reflex sights, holographic sights, foregrips, bipods, slings and bayonets. An updated version of the rail is adopted as a NATO standard as the STANAG 4694 NATO Accessory Rail. History Attempts to standardize the Weaver rail mount designs date from work by the A.R.M.S. company and Richard Swanson in the early 1980s. Specifications for the M16A2E4 rifle and the M4E1 carbine received type classification generic in December 1994. These were the M16A2 and the M4 modified wi ...
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Iron Sights
Iron sights are a system of physical alignment markers used as a sighting device to assist the accurate aiming of ranged weapons such as firearms, airguns, crossbows, and bows, or less commonly as a primitive finder sight for optical telescopes. Iron sights, which are typically made of metal, are the earliest and simplest type of sighting device. Since iron sights neither magnify nor illuminate the target, they rely completely on the viewer's naked eye and the available light by which the target is visible. In this respect, iron sights are distinctly different from optical sight designs that employ optical manipulation or active illumination, such as telescopic sights, reflector (reflex) sights, holographic sights, and laser sights. Iron sights are typically composed of two components mounted perpendicularly above the weapon's bore axis: a 'rear sight' nearer (or 'proximal') to the shooter's eye, and a 'front sight' farther forward (or 'distal') near the muzzle. During ...
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STANAG Magazine
A STANAG magazine or NATO magazine is a type of detachable firearm magazine proposed by NATO in October 1980. Shortly after NATO's acceptance of the 5.56×45mm NATO rifle cartridge, Draft Standardization Agreement ( STANAG) 4179 was proposed in order to allow NATO members to easily share rifle ammunition and magazines down to the individual soldier level. The U.S. M16 rifle's magazine proportions were proposed for standardization. Many NATO members, but not all, subsequently developed or purchased rifles with the ability to accept this type of magazine. However, the standard was never ratified and remains a "Draft STANAG". Magazines The STANAG magazine concept is only an interface, dimensional and controls (magazine latch, bolt stop, etc.) requirement. Therefore, it not only allows one type of magazine to interface with various weapon systems, but also allows STANAG magazines to be made in various configurations and capacities. The standard capacities of STANAG-compatible mag ...
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M27 Link
M, or m, is the thirteenth letter of the Latin alphabet, used in the modern English alphabet, the alphabets of several western European languages and others worldwide. Its name in English is ''em'' (pronounced ), plural ''ems''. History The letter M is derived from the Phoenician Mem via the Greek Mu (Μ, μ). Semitic Mem is most likely derived from a " Proto-Sinaitic" (Bronze Age) adoption of the "water" ideogram in Egyptian writing. The Egyptian sign had the acrophonic value , from the Egyptian word for "water", ''nt''; the adoption as the Semitic letter for was presumably also on acrophonic grounds, from the Semitic word for "water", '' *mā(y)-''. Use in writing systems English In English, represents the voiced bilabial nasal . The Oxford English Dictionary (first edition) says that is sometimes a vowel, such as in words like ''spasm'' and in the suffix ''-ism''. In modern terminology, this is described as a syllabic consonant (IPA: ). M is ...
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Variants
Variant may refer to: Arts and entertainment * ''Variant'' (magazine), a former British cultural magazine * Variant cover, an issue of comic books with varying cover art * ''Variant'' (novel), a novel by Robison Wells * " The Variant", 2021 episode of the TV series ''Loki'' **Sylvie (Marvel Cinematic Universe), a character who was originally referred to as the Variant **"Variant", a fictional term in the Marvel Cinematic Universe pertaining to the multiverse Gaming *Chess variant, a game derived from, related to or similar to chess in at least one respect *List of poker variants * List of ''Tetris'' variants Mathematics and computing * Loop variant, a decreasing value ensuring that a loop in a computer programme terminates * Variant (logic), a term or formula obtained from another one by consistently renaming all variables * Variant symlinks, a symbolic link to a file that has a variable name embedded in it * Variant type, in programming languages * Z-variant, unicode characters ...
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FN Herstal
, trading as FN Herstal and often referred to as Fabrique Nationale, or simply FN, is a leading firearms manufacturer based in Herstal, Belgium, and former vehicle manufacturer. It was the largest exporter of military small arms in Europe . FN Herstal is owned by FN Browning Group, which is in turn owned by the regional government of Wallonia. The Herstal Group also owns the Browning Arms Company and the U.S. Repeating Arms Company (Winchester). FN America is the U.S. subsidiary of FN Herstal, which was formed by the merger of FN's previous two American subsidiaries – FN Manufacturing and FNH USA. A United Kingdom-based manufacturing facility, FN UK, is also in operation. Firearms designed and/or manufactured by FN include the S.A.W. M249, Browning Hi-Power and Five-seven pistols, the FAL, FNC, F2000 and SCAR rifles, the P90 submachine gun, the M2 Browning, MAG, Minimi and the FN Evolys machine guns; all have been commercially successful.Miller, David (2001). '' ...
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