Arsenal's polymer pistol grips are a great addition to any milled or stamped receiver AK-pattern rifle, and they follow authentic Bulgarian military design pattern seen on Arsenal's AR-M1, etc. rifles. They are manufactured from reinforced high-strength polymer material and include a metal reinforcement. They come in matte black, plum, OD green colors and are used on Arsenal's SLR-101S, SA M-5 Series, SA M-7 Series, SAM7R, SAM7UF rifles. These are the only US made mil-spec pistol grips in the market that are also 922r compliant.