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Kalashnikov AKS-74U assault rifle (Russia - USSR)

AKS-74U-UBN with the BS-1 "Tishina" 30mm suppressed grenade launcher (shown detached, along with special blank launcher cartridge and 30mm HE-DP grenade)

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Caliber: 5,45x39 mm
Action: Gas operated, rotating bolt with 2 lugs
Overall length: 735 mm (490 mm with folded buttstock)
Barrel length: 210 mm
Magazine capacity, 30 rounds standard
Weight empty: 2,71 kg
Effective range: about 200 meters
Rate of fire: 650-735 rounds per minute

The AKS-74U short assault rifle (the "U" suffix means "Ukorochennyj" in Russian = "Shortened" in English) has been developed in the late 1970s from the AKS-74 assault rifle. The AKS-74U was intended as a personal defense weapon for tanks, guns, helicopters and other vehicles crews, and for the special operations forces, who required a compact but relatively powerful individual automatic weapon. The AKS-74U has the size and effective range of a typical submachine gun, but has advantage of the general issue, assault rifle ammunition and magazines, as well as the parts interchangeability with the general issue assault rifle, the AK-74. Since its introduction the AKS-74U, unofficially known as a "Ksyukha" (variation of a Russian woman name) or "okurok" (cigarette stub), also had been issued to various Police and other Law Enforcement forces acres the USSR and the Post-USSR countries, including Russia. Interestingly, the AKS-74U is known in the USA as the "Krinkov", but what it means is a mystery for me. The AKS-74U is somewhat popular among its users due to its compact size, which allows it to be carried in the cars and even concealed under the clothes. On the other side, its effective range of fire is greatly limited by the poor accuracy at extended ranges, while the bullet itself remains its lethality at much greater ranges. The AKS-74U also known for its tendency for rapid overheating during the prolonged fire sessions. A special version of the AKS-74U had been developed for the Special Forces (SpetsNaz), which could be fitted with quickly detachable silencer and a special 30mm silenced grenade launcher model BS-1 "Tishina" ("silence"). The launcher uses special HE-DP grenades, which are launched using special blank cartridges, stored in the box magazine, contained in the launcher pistol grip.

The AKS-74U has only few differences from the basic AKS-74 assault rifle, which I will describe below. For the technical description of the AK-74 and AKS-74, please refer to the appropriate article at this site.

AKS-74U has a severely shortened barrel, with the gas chamber moved back and appropriately cut down gas piston rod. Since the portion of the barrel after the gas port is very short, a special muzzle device was designed, which is used as a flash hider and the gas expansion chamber (to achieve reliable gas operated action). The front sight base is lowered, and the standard adjustable rear sight is replaced by the flip-up rear (marked for 200 and 400 meters distance), mounted on the receiver cover. The receiver cover is hinged to the receiver at the front and flips up when opened (original AK-74 receiver cover is detachable). Otherwise the AKS-74U is similar to the AKS-74, it has similar controls, folding buttstock, and uses same magazines. AKS-74U cannot be fitted with bayonet. Some versions had a standard side-mounted rail for the night or red-dot scopes, and are known as AKS-74U-N.

Tales of the Gun: The AK-47 See a rare interview with the inventor of one of the world's deadliest and most coveted guns.