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The grenade consists of a heavy warhead section of 30–75 mm (1.2–3.0 in) in diameter for the nose, and a lightweight hollow tube for the tail section. The inner diameter of this tube is 22 mm, and fits over the tube attachment on the muzzle with only a small amount of play, to create a good gas seal and promote accuracy.
The gas tube and upper handguard could now be removed as needed to access the gas port and piston for cleaning. [2] The appearance of a 7.62×39mm prototype revived interest in Simonov's design, as only he and one other weapons designer, Alexey Sudayev , were able to produce rifles chambered for the new round on short notice. [ 17 ]
The original Soviet blade bayonet as standard to the SKS had to be replaced by a unique Yugoslav bayonet to accommodate the new mount placement. [7] A commercial variant of the M59 and M59/66 series, available for sale to civilians in some of the post-Yugoslav republics, lacked the bayonet or the ability to fire rifle grenades. [15]
A 22 mm (0.87 in) grenade can range from powerful anti-tank rounds such as the M9 rifle grenade, to simple finned tubes with a fragmentation hand grenade attached to the end such as the M1 grenade adapter. The "22 mm (0.87 in)" refers to the diameter of the base tube which fits over the spigot of the launcher, not the diameter of the warhead ...
The Stoner gas system of the American M16, M4, and AR-15 style rifles utilize a modified version of this where a gas tube delivers gas into the bolt carrier to impinge on the bolt, which acts as a piston to cycle the rifle. One principal advantage is that the moving parts are placed in-line with the bore axis meaning that sight picture is not ...
The Type 63 (Chinese: 63式7.62mm自动步枪) is a Chinese 7.62×39mm assault rifle.The weapon's overall design was based on the SKS (known in Chinese service as the Type 56 carbine), but with select fire capability and a rotating bolt system adapted from the Type 56 assault rifle, a derivative of the AK-47. [7]
Uniquely, it lacks vent cuts on the upper gas tube heatguard. Also retains a metal ferrule that sits between the lower handguard and the front of the receiver that the AK-47 had. The pistol grip is the same kind as the AK-47 being made out of wood with a metal ferrule between it and the receiver instead of the later one piece bakelite like the AKM.
The 7.62×39mm (also called 7.62 Soviet, formerly .30 Russian Short) [5] round is a rimless bottlenecked intermediate cartridge of Soviet origin. The cartridge is widely used due to the global proliferation of the AK-47 rifle and related Kalashnikov rifles, the SKS semi-automatic rifle, and the RPD and the RPK light machine guns.