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-101 The AK-101 is an assault rifle of the Kalashnikov series. The AK-101 is designed for the world export market, using 5.56×45mm NATO cartridges, which is the standard of most NATO armies. The AK-101 is marketed at those looking for a weapon that combines the logistical compatibility and familiarity of the 5.56×45mm NATO round with the reliability of a Kalashnikov. It is designed with modern and composite materials, including plastics that reduce weight and improve accuracy. Many of the improvements found in the AK-101 are also present in the AK-103 and the rest of the AK-100 series of rifles. The