AK-47 AK-47 The AK-47, AK, or as it is officially known (), also known as the Kalashnikov, is a gas-operated, 7.62×39mm assault rifle, developed in the Soviet Union by Mikhail Kalashnikov. It is the originating firearm of the Kalashnikov rifle (or "AK") family. Design work on the AK-47 began in 1945. In 1946, the AK-47 was presented for official military trials, and in 1948, the fixed-stock version was introduced into active service with selected units of the Soviet Army. An early development of the design was the "AKS" (S—"Skladnoy" or "folding"), which was equipped with an underfolding metal shoulder stock. In
AK-105 by the Izhmash factories in Izhevsk, Russia. and other law enforcement. It is also in limited service with the Russian Army. AK-105 The AK-105 is a shortened carbine version of the AK-74M rifle, which in turn was derived from the original AK-47 design and its AK-74 successor. The AK-102, AK-104, and AK-105 are very similar in design, the only difference being the caliber and corresponding magazine type. The AK-105 is chambered to fire 5.45×39mm ammunition. The AK-105 is supplementing AKS-74U carbines in Russian Army service since 2001. Compared to the AK-74M, AK-101, and AK-103, which are full-size assault rifles of