This is Riley's version of the 100 series, American made Side folding AK47 rifle. It features a side folding metal stock, polymer upper & lower handguard, Mil-Spec stamped receiver and a 4150 nitride treated barrel. Model RAK47-P-SF Action semi-auto Casing Black Finish Black Safety Manual Caliber 7.62x39 Capacity 30 Barrel Type 4150 Steel Barrel Length 16"