ProMag Standard 50rd Drum 308 Win/7.62x51mm NATO Fits AR-10 Black DuPont Zytel Polymer DRMA1

This drum magazine has a body constructed of proprietary DuPont Zytel based polymer. It features over molded stamped steel feed lips and magazine catch. Additional components include an injection molded magazine follower and a heat treated stainless steel magazine spring. Does not fit rifles using Armalite pattern magazines. Fits most AR-308 / .308 Cal AR type rifles using LR-308 (DPMS) or SR-25 pattern magazine;Over molded stamped steel feed lips and magazine catch;Magazine body constructed of a proprietary DuPont Zytel based polymer;Injection molded magazine follower;Does not fit rifles using Armalite pattern magazines