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Vz. 23
The CZ Model 23/25 (properly, Sa 23/25 or Sa vz. 48b/samopal vz. 48b – ''samopal vzor 48 výsadkový'', "submachine gun model year 1948 para") was a series of Czechoslovak designed submachine guns introduced in 1948. There were four generally very similar submachine guns in this series: the Sa 23, Sa 24, Sa 25, and Sa 26. The primary designer was Jaroslav Holeček (15 September, 1923–12 October 1997), chief engineer of the Česká zbrojovka Uherský Brod arms factory. Design The Sa 23 series utilize a straightforward blowback action, with no locked breech, and fire from the open bolt position. They also use a progressive trigger for selecting between semi-automatic fire and fully automatic fire. Lightly pulling on the trigger will fire a single shot. Pulling the trigger farther to the rear in a continuous motion will fire fully automatically, until the trigger is released or the magazine is empty. The Sa 23 series were submachine guns with a telescoping bolt, in w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Czechoslovakia
Czechoslovakia ( ; Czech language, Czech and , ''Česko-Slovensko'') was a landlocked country in Central Europe, created in 1918, when it declared its independence from Austria-Hungary. In 1938, after the Munich Agreement, the Sudetenland became part of Nazi Germany, while the country lost further territories to First Vienna Award, Hungary and Trans-Olza, Poland (the territories of southern Slovakia with a predominantly Hungarian population to Hungary and Zaolzie with a predominantly Polish population to Poland). Between 1939 and 1945, the state ceased to exist, as Slovak state, Slovakia proclaimed its independence and Carpathian Ruthenia became part of Kingdom of Hungary (1920–1946), Hungary, while the German Protectorate of Bohemia and Moravia was proclaimed in the remainder of the Czech Lands. In 1939, after the outbreak of World War II, former Czechoslovak President Edvard Beneš formed Czechoslovak government-in-exile, a government-in-exile and sought recognition from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lebanese Civil War
The Lebanese Civil War ( ) was a multifaceted armed conflict that took place from 1975 to 1990. It resulted in an estimated 150,000 fatalities and led to the exodus of almost one million people from Lebanon. The religious diversity of the Lebanese people played a notable role in the lead-up to and during the conflict: Lebanese Christians and Lebanese Sunni Muslims comprised the majority in the coastal cities; Lebanese Shia Muslims were primarily based throughout southern Lebanon and in the Beqaa Valley in the east; and Lebanese Druze, Druze and Christians populated the country's mountainous areas. At the time, the Lebanese government was under the influence of elites within the Maronite Christian community. The link between politics and religion was reinforced under the Greater Lebanon, French Mandate from 1920 to 1943, and the country's parliamentary structure favoured a leading position for Lebanese Christians, who constituted the majority of the population. However, Leban ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuba
Cuba, officially the Republic of Cuba, is an island country, comprising the island of Cuba (largest island), Isla de la Juventud, and List of islands of Cuba, 4,195 islands, islets and cays surrounding the main island. It is located where the northern Caribbean Sea, Gulf of Mexico, and Atlantic Ocean meet. Cuba is located east of the Yucatán Peninsula (Mexico), south of both Florida and the Bahamas, west of Hispaniola (Haiti/Dominican Republic), and north of Jamaica and the Cayman Islands. Havana is the largest city and capital. Cuba is the List of countries and dependencies by population, third-most populous country in the Caribbean after Haiti and the Dominican Republic, with about 10 million inhabitants. It is the largest country in the Caribbean by area. The territory that is now Cuba was inhabited as early as the 4th millennium BC, with the Guanahatabey and Taino, Taíno peoples inhabiting the area at the time of Spanish colonization of the Americas, Spanish colonization ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warsaw Pact
The Warsaw Pact (WP), formally the Treaty of Friendship, Co-operation and Mutual Assistance (TFCMA), was a Collective security#Collective defense, collective defense treaty signed in Warsaw, Polish People's Republic, Poland, between the Soviet Union and seven other Eastern Bloc List of non-communist socialist states, socialist republics in Central and Eastern Europe in May 1955, during the Cold War. The term "Warsaw Pact" commonly refers to both the treaty itself and its resultant military alliance, the Warsaw Pact OrganisationPage 22, �NATO and OSCE, Partners or Rivals?��, Edward Killham (WPO) (also known as ‘Warsaw Treaty Organization’ (‘WTO’)). The Warsaw Pact was the military complement to the Comecon, Council for Mutual Economic Assistance (Comecon), the economic organization for the Eastern Bloc states. Dominated by the Soviet Union, the Warsaw Pact was established as a balance of power or counterweight to the NATO, North Atlantic Treaty Organization (NATO) and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blowback-operated
Blowback is a system of operation for self-loading firearms that obtains energy from the motion of the cartridge case as it is pushed to the rear by expanding gas created by the ignition of the propellant charge. Several blowback systems exist within this broad principle of operation, each distinguished by the methods used to control bolt movement. In most actions that use blowback operation, the breech is not locked mechanically at the time of firing: the inertia of the bolt and recoil , relative to the weight of the bullet, delay opening of the breech until the bullet has left the barrel. A few locked breech designs use a form of blowback (example: primer actuation) to perform the unlocking function. The blowback principle may be considered a simplified form of gas operation, since the cartridge case behaves like a piston driven by the powder gases. Other operating principles for self-loading firearms include delayed blowback, blow forward, gas operation, and recoil operation. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open-bolt
A firearm is said to fire from an open bolt or open breech 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 the magazine or belt into the chamber, and fires that cartridge in the same movement. Like any other self-loading design, the action is cycled by the energy released from the propellant, which sends the bolt back to the rear, compressing the mainspring in readiness for firing the next round. In an open-bolt gun firing semi-automatically, the bolt is caught and held at this point by the sear after each shot; and in automatic open-bolt fire, it's caught and held in this manner whenever the trigger is released. In contrast to this, in closed-bolt guns, the trigger and sear do not affect the movement of the bolt directly. Generally, an open-bolt firing cycle is used for fully automatic weapons and not for semi-automatic weapons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telescoping Bolt
A telescoping bolt (also known as an overhung bolt) is a firearm bolt which telescopes over, that is, wraps around and past, the breech end of the barrel. This feature reduces the required length of a weapon such as a submachine gun significantly, and it allows compact designs to be balanced around the pistol grip in a way that gives "pointability" more like a pistol's. While it would be simpler and easier to shorten the bolt to fit completely behind the breech, the bolt must have a certain amount of mass in order to operate reliably with a given caliber. The telescoping bolt moves some of that mass forward of the bolt face, resulting in a bolt which may be longer overall, but is shorter behind the bolt face. Though technically a different, distinct concept, nearly all telescoping bolt submachine guns use a magazine A magazine is a periodical literature, periodical publication, print or digital, produced on a regular schedule, that contains any of a variety of subject- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Progressive Trigger
Progressive may refer to: Politics * Progressivism, a political philosophy in support of social reform ** Progressivism in the United States, the political philosophy in the American context ** Progressivism in South Korea, the political philosophy in the South Korean context * Progressive realism, an American foreign policy paradigm focused on producing measurable results in pursuit of widely supported goals Political organizations * Congressional Progressive Caucus, members within the Democratic Party in the United States Congress dedicated to the advancement of progressive issues and positions * Progressive Alliance (other) * Progressive Conservative (other) * Progressive Party (other) * Progressive Unionist (other) Other uses in politics * Progressive Era, a period of reform in the United States (c. 1890–1930) * Progressive tax, a type of tax rate structure Arts, entertainment, and media Music * Progressive music, a type of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blowback (arms)
Blowback is a system of operation for self-loading firearms that obtains energy from the motion of the cartridge case as it is pushed to the rear by expanding gas created by the ignition of the propellant charge. Several blowback systems exist within this broad principle of operation, each distinguished by the methods used to control bolt movement. In most actions that use blowback operation, the breech is not locked mechanically at the time of firing: the inertia of the bolt and recoil , relative to the weight of the bullet, delay opening of the breech until the bullet has left the barrel. A few locked breech designs use a form of blowback (example: primer actuation) to perform the unlocking function. The blowback principle may be considered a simplified form of gas operation, since the cartridge case behaves like a piston driven by the powder gases. Other operating principles for self-loading firearms include delayed blowback, blow forward, gas operation, and recoil ope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jaroslav Holeček
Jaroslav (also written as Yaroslav or Jarosław in other Slavic languages) is a Czech and Slovak first name, pagan in origin. Its feminine form is Jaroslava. There are several possible origins of the name Jaroslav. It is very likely that originally the two elements of the name referred to ''Jarilo'' - male Proto-Slavic deity of the sun, spring, and fertility, and ''slav'' meaning glory, i.e. "glory of the sun". However, with the adoption of Christianity in the Slavic countries the name began to be commonly understood not as a reference to a pagan deity, but rather to the "fervent worship of Go1of the Bible. ;People named Jaroslav: *Jaroslav Drobný, Czech tennis player *Jaroslav Drobný, Czech footballer *Jaroslav Filip, Slovak musician. *Jaroslav Foglar, Czech novelist *Jaroslav Halák, Slovak ice hockey player *Jaroslav Hašek, Czech author, writer of ''The Good Soldier Švejk'' *Jaroslav Heyrovský, Czech chemist and inventor, recipient of the Nobel prize *Jaroslav Jakubovi� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submachine Gun
A submachine gun (SMG) is a magazine (firearms), magazine-fed automatic firearm, automatic carbine designed to fire handgun cartridges. The term "submachine gun" was coined by John T. Thompson, the inventor of the Thompson submachine gun, to describe its design concept as an automatic firearm with notably less firepower than a machine gun (hence the prefix "wikt:sub-, sub-"). As a machine gun must fire rifle cartridges to be classified as such, submachine guns are not considered machine guns. The submachine gun was developed during World War I (1914–1918) as a Close-quarters battle, close quarter offensive weapon, mainly for trench raiding. At its peak during World War II (1939–1945), millions of submachine guns were made for shock troops, assault troops and auxiliaries whose military doctrine, doctrines emphasized close-quarters combat, close-quarter suppressive fire. New submachine gun designs appeared frequently during the Cold War,Military Small Arms Of The 20th Century. Ian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
