This AK-74 magazine from ProMag has a body constructed of a proprietary DuPont Zytel based polymer. Additional components include an injection molded magazine follower and a spring formed from heat-treated chrome silicon wire. FIts most common variants of AK-74 in 5.56x45mm.Features:Fits most variants of AK-74 in 5.56x45mm;Magazine body constructed of a proprietary DuPont Zytel based polymer;Injection molded follower;Magazine spring formed from heat treated chrome silicon wire;Does not fit unconverted Saiga rifles