Riley Defense Inc RPK 308 Win 20+1 22" Blued Threaded Barrel, Blued Receiver, Fixed Wood Stock, Black Polymer Grip, Bayonet Lug, Bipod The RPK is a milled receiver rifle, chambered in 308 WIN caliber and built on a mil-spec, RPK surplus kit (YUGO M77B) with adequate American components to make it 922r compliant. The wood furniture has the markings, dents and dings illustrating the battlefield. Features CNC machined scope mount side rail; wood stock, upper and lower handguards; adjustable gas system with three settings and a bayonet lug. Includes bipod, cleaning rod and a steel magazine.