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The gas operated action has a large bolt carrier with a permanently attached long stroke gas piston. The gas chamber is located above the barrel. The bolt carrier rides on the two rails, formed on the side of the receiver, with a significant space between the moving and stationary parts.
Location of the return spring on the left side of the bolt allowed its height to be reduced along with the height of the arms in general. Shoe flies combine with the gas chamber, with a diopter sight fully posted on the cover of the receiver. A cleaning gas vent at the top of the gas chamber in the firing position is covered by a crane.
A gas chamber is an apparatus for killing humans or animals with gas, consisting of a sealed chamber into which a poisonous or asphyxiant gas is introduced. Poisonous agents used include hydrogen cyanide and carbon monoxide .
The operating mechanism does not require a gas expansion chamber at the muzzle, as in the AKS-74U to ensure reliable functioning, but does use a specially designed muzzle brake. The AMD-65, along with the earlier AKM-63, have been largely replaced in Hungarian military service by the AK-63, a more traditional AKM copy with a lower manufacturing ...
The AKM rifle's slant-cut compensator . Construction of a muzzle brake or compensator can be as simple as a diagonal cut at the muzzle end of the barrel to direct some of the escaping gas upward. On the AKM assault rifle, the brake also angles slightly to the right to counteract the sideways movement of the rifle under recoil.
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 .
The AKMSU (Russian: АКМСУ) [a] is the name attributed to a compact carbine derived from the Soviet AKM, chambered in 7.62×39mm.The carbine was commonly thought to be a Soviet prototype weapon, but evidence suggests that the carbine was not actually of Soviet origin, and was instead a custom-made weapon misattributed as a Soviet weapon.
The chamber portion of the barrel rests on a U-shaped barrel bracket attached to the gas cylinder. The barrel is firmly locked in position by means of a spring-loaded latch (with two nested coil springs) which drives a steel pin into a hole in the barrel socket. All barrels have a gas block to which a bayonet lug and front sight assembly are ...