AK-74 be used by the majority of countries of the former Soviet Union. Additionally, licensed copies were produced in Bulgaria (AK-74, AKS-74 and AKS-74U), and the former East Germany (MPi-AK-74N, MPi-AKS-74N, MPi-AKS-74NK). Besides former Soviet republics and eastern European countries, Mongolia, North Korean Special Forces, and Vietnamese People's Naval infantry use AK-74s. The AK-74 was designed by А. D. Kryakushin's group under the design supervision of Mikhail Kalashnikov and is an adaptation of the 7.62×39mm AKM assault rifle and features several important design improvements. These improvements were primarily the result of converting the rifle to the intermediate-caliber high velocity 5.45×39mm cartridge.
AK-101 AK-74M is still the main assault rifle of the Russian Federation, with the AK-105 being introduced alongside, both chambered for 5.45×39mm. The AKM firing 7.62 mm Soviet rounds is in limited service with selected units in the Russian army, and the AK-103 is in service with some Russian civil police agencies and spec ops units. The advanced AN-94 is entering limited service in the elite forces of the Russian military, some Russian police forces, and the Ministry of Internal Affairs. The AK-101 is a selective fire weapon that can be fired in either semi-automatic or fully automatic mode. The disassembly