Yugo M72B1 RPK-style AK47 Rifle, Underfolder, 7.62x39, 30rd by J.R.A W / 1-30 Round Magazine

The original M72 was a gas-operated, air-cooled, drum-fed, select fire, shoulder-fired weapon with a bi-pod. Commonly used from a prone position in order to deliver suppressive or cover fire at a high rate of speed; it was originally used as a squad automatic weapon like the Soviet RPK, but it had unique design features such as the heavy finned barrel which allowed for maximum cooling under heavy fire, The B1 designation denotes the modernized version of the rifle with the heavy 1.5 mil stamped