Yugoslavian M72B1 RPK Carbine Style Semi Auto AK-47 rifle. These are the carbine variation of the full length RPK M72 rifles equipped with an underfolding stock. These rifles are built by James River Armory from Original Grade A M72B1 parts kits utilizing enough US parts to make them 922rd compliant. Rifles feature a brand new U.S.-made heavy finned 16 inch carbine barrel and a J.R.A. 1.5 mm thick heavy receiver. The resulting rifle is a Yugoslavian based rifle with all of the military spec quality of the original Yugo Zastava based sqad automatic rifle, but the shorter barrel and folding stock results in a rifle similar to a Paratrooper configuration. Semi-Auto, 7.62x39 Caliber, Accepts all standard AK-47 Mags and Drums.Ships with 1-30 round mag.