This AK-47 drum from ProMag has a body constructed of a proprietary DuPont Zytel based polymer. It has over molded stamped feed lips made of steel, along with front and rear magazine catch. Additional components include an injection molded magazine follower and a spring formed from heat-treated chrome silicon wire. FIts most common variants of AKs in 7.62x39mm. Does not fit unconverted Saiga rifles.