Riley Defense AK308-C, Semi-automatic, AK, 308 Winchester, 19.5 Barrel, Milled Receiver, Matte Finish, Black, Wood Furniture, Adjustable Sights, 10 Rounds, 1 Magazine RAK308 The Riley Defense RAK308 is a 308 Winchester chambered milled receiver built on Yugo military surplus kits. Weighing in at 9.5 pounds with a 19.5" barrel length and comes with 10 round magazine.