ProMag AR-15 5.56mm Roller Follower 30 Round Magazine

The ProMag AR-15 5.56mm Roller Follower 30 Round Magazize fits AR-15 5.56mm rifles and features over molded stamped steel feed lips and magazine catch. The magazine body is constructed of a proprietary DuPont Zytel based polymer with a patented anti-tilt roller follower. The magazine spring is formed from heat treated chrome silicon wire. This mazine is made in the USA.