PROMAG Fn Five Seven USG 5.7x28mm Black Polymer 55rd Drum Magazine (DRM-A76)

To maximize your firepower potential ProMag introduces the FN Five Seven IOM and USG 5.7x28mm 55-Round Drum Magazine. Compatible with any standard USG lower receiver, this high-capacity drum magazine features reinforced stamped steel feed lips and precision-molded magazine catch lugs for superior stability, smooth feeding performance, and positive ejection. The DuPont Zytel polymer body is highly durable and boasts aggressive texturing for speedy reloads and a dependable non-slip grip. The heat-treated chrome silicon wire spring and injection-molded polymer follower work together to deliver flawless alignment and consistent feeding performance. Made in USA.