Claim: The AK-47 was not the basis for developing other firearms.
Evidence: The AK-47 -LRB- -LSB- Автомат Калашникова , translit = Avtomat Kalashnikova , lit = Kalashnikov 's Automatic Rifle -RSB- -RRB- is a selective-fire -LRB- semi-automatic and automatic -RRB- , gas-operated 7.62 × 39 mm assault rifle , developed in the Soviet Union by Mikhail Kalashnikov.
He is most famous for developing the AK-47 assault rifle and its improvements , the AKM and AK-74 , as well as the PK machine gun and RPK light machine gun.