Made from AK-Builder, these AKM Slant Brakes are made right here in the USA and feature a black oxide finish. Length is 1.31″ and weighs in at 0.8oz. For AKs with 14x1mm LH Threading up to 7.62x39mm (will not fit Polish Wz. 88 Tantal Rifles). Counts as one 922(r) compliant part.