ProMag MP5/PTR9 9mm 50rd Drum Magazine, Black - DRMA106

This 50-round drum magazine is chambered in 9mm and designed to fit the H&K MP5 and PTR9 platforms. The drum housing is constructed from a proprietary DuPont Zytel-based polymer with a heat-treated carbon steel feed lip reinforcement, injection-molded follower, and heat-treated stainless steel spring, all made in the USA.