This is a milled receiver AK rifle, chambered in .308 WIN caliber and built by Riley Defense on a mil-spec, surplus kit (YUGO) with adequate American components to make it 922r compliant. This is a milled receiver AK rifle, chambered in .308 WIN caliber and built by Riley Defense on a mil-spec, surplus kit (YUGO) with adequate American components to make it 922r compliant. The wood furniture has the markings, dents, and dings illustrating the battlefield-pickup origins of this rifle and ranging in color from light to dark brown.