ProMag Standard 65rd Drum w/ Capacity Window 223 Rem/5.56x45mm Fits AR-15 Black DuPont Zytel Polymer DRMA24

This drum fits AR-15 firearms chambered in 5.56mm / .223 Rem. It has a body made of a DuPont Zytel based polymer. It has over molded stamped steel feed lips and magazine catch. Additional components include an injection molded follower and a spring formed from heat treated chrome silicon wire. 65-round AR-15 drum magazine with window;Over molded stamped steel feed lips and magazine catch;Magazine body constructed of a proprietary DuPont Zytel based polymer;Injection molded follower;Spring formed from heat treated chrome silicon wire