7.62x39mm. 24" barrel length (with muzzle device). SN: I-320610. Blued metal finish with laminated wood semi-pistol grip stock and mounting a rubber recoil pad with port for the trapdoor in the butt. Short-stroke piston driven gas-operated semi-automatic rifle fed by an internal box magazine. Item mounts a grenade launching muzzle with flip up grenade launching sights, phosphorescent night sights, and a gas cutoff mechanism. The rifle retains a folding blade bayonet, and comes with a green canvas sling that is devoid of manufacturer markings. Right barrel is struck with importer markings reading INTERORDNANCE OF AMERICA MONROE NC/M59/66, YUGOSLAVIA, 7.62 X 39. Serial numbers and assembly numbers match on all parts where observed.