Gun fired in full automatic mode and in single shots. Cocking handle is located at the left side of the weapon, above the wooden handguard it does not reciprocate when gun is fired. TKB-408 is gas operated, locked breech weapon that uses vertically tilting bolt to lock the barrel. This weapon was tested by Soviet Army commission in 1946-47, but was found unsatisfactory eventually, trials were won by Kalashnikov AK rifle. Korovin 7.62mm experimental assault rifle of 1945). Usually claimed as a first military-type automatic rifle of bullpup configuration, this weapon, in fact, has been preceded by several designs that appeared during the WW2 in Great Britain and USSR (i.e. This weapon has been designed in Tula, for 1946 Soviet Army trials for a new assault rifle. The TKB-408 assault rifle has been developed by designer German A. Korobov TKB-408 assault rifle (USSR) Caliber: 7.62x39mm M43 Action: Gas operated, tilting bolt Overall length: 790 mm Barrel length: n/a Weight: 4.3 kg Rate of fire: n/a Magazine capacity: 30 rounds SR-3M Vikhr compact assault rifle, current issue model, with 'new pattern' 30-round magazine SR-3M Vikhr compact assault rifle, current issue model, with 'old pattern' 20-round magazine, quickmounted silencer and telescope sight SR-3M Vikhr compact assault rifle, early model, with 'old pattern' 20-round magazine shoulder stock and forward grip extended The SR-3M differs by having AS-style controls (safety lever, semi / auto selector switch inside the trigger guard, charging handle), improved polymer furniture, AS-style sidefolding shoulder stock, quick-detach mount for proprietary silencer at the muzzle, and a side-rail for mounting of various optical equipment (Red-dot or telescope day sights, night sights) Open sights consist of a protected front post nd a flip-up rear sight with U-notch, with settings for 100 and 200 meters range. SR-3 uses same polymer magazines for 10 or 20 rounds, as the parent AS and VSS rifles. The fire mode selector is of crossbolt, push button type and located behind the trigger, inside the trigger guard. The trigger unit is generally the same as in the AS, but the AK-type safety is replaced by ambidextrous lever above the pistol grip. The redesigned charging handle, made in the form of dual sliders above the forearm, must be grasped by thumb and index finger and then retracted to load the weapon. Other changes included a more compact, top-folding butt and simplified flip-up rear sight. However, the SR3 has no integral silencer, nor provision to mount one, and thus is much shorter than the AS. 5.8X42MM VS 5.56X45 PLUSThe SR-3 features the receiver, machined from a bar of steel, and gas-operated action with long stroke piston, plus the same rotating bolt group from the AS. SR-3 Vikhr compact assault rifle, shoulder stock extended Another useful accessory for the SR-3M is a new magazine with enlarged capacity (30 rounds), which also provides more reliable feeding during automatic fire. The new SR-3M (Modified) compact assault rifle features more convenient fire controls and charging handle, integral forward grip (folding), and, most important, specially developed quick-detachable silencer (sound moderator) and a standard side rail for mounting day or night optics on the left side of the receiver. SR-3 Vikhr compact assault rifle, shoulder stock foldedįollowing the demand from users, the TSNIITOCHMASH recently developed an improved version of the SR-3, with intent to produce a more versatile weapon for Law Enforcement use. Thus, SR-3 is considered to be an assault rifle rather than a submachine gun. In terms of size and weight, the SR-3 is similar to many submachine guns, but it fires much more powerful 9x39mm ammunition, available in armor piercing (SP-6) and ball (SP-5) loadings. The SR-3 is widely used by various FSO (Federal Protection Service, a VIP protection organization, which guards the President and the government of the Russian Federation) and FSB (Federal Security Service) operatives, elite Russian counter-terror teams and other specialized users in the MVD and Russian police. Initially known as "MA" (Malogabaritnyj Avtomat = small-size assault rifle), it was based on the silenced 9 mm AS "Val" assault rifle, and intended for concealed carry by special VIP protection teams and State security operatives. The SR-3 "Vikhr" ("Whirlwind") compact assault rifle was developed in TSNIITOCHMASH by A. Overall length (butt folded / open) Barrel length Weight: SR-3 / SR-3M "Vikhr" compact assault rifle (Russia) SR-3Ģ.2 kg less magazine 3.2 kg with empty 30-rd magazine and silencer
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