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
Type 81 assault rifle Type 81 assault rifle The Type 81 () is a Chinese-designed Kalashnikov and SKS based, second-generation, selective-fire, gas-operated 7.62×39mm assault rifle adopted by the Chinese People's Liberation Army (PLA) since the mid-1980s. The weapon was introduced into PLA service in 1981 but did not become widely distributed until the late 1980s. It replaced the SKS and the Type 56 rifle (a Chinese license produced AK-47). Its first combat use came during the Sino-Vietnamese border conflicts of the mid-1980s. The PLA has replaced most of its Type-81s with the Type 95 or Type 03 series of weapons, though it is still