PROMAG DRUM AR-15 5.56 BLK 65RD POLY W/WINDOW

65-round drum magazine with window - Fits AR-15 5.56mm / .223 rifles - Over molded stamped steel feed lips and magazine catch - Magazine body constructed of a proprietary DuPont� Zytel based polymer - Injection molded follower - Magazine spring formed from heat treated chrome silicon wire - Made in USA