The Magpul PMAG Gen M3 AR-15 Magazine reflects five years of research and development to advance the already proven PMAG design. Improved materials and manufacturing methods have made the PMAG M3 magazine perform to a higher standard in all tests: durability, impact strength, chemical resistance, and exposure to extreme temperatures. Internally, a new low friction, 4-way anti-tilt follower and enhanced constant curve geometry (30 and 40-Round PMAGs) further increase feeding reliability in adverse conditions.

The next-generation PMAG 30 GEN M3 Window is a 30-round 5.56x45 NATO (.223 Remington) polymer magazine for AR15/M4 compatible weapons that features transparent windows to allow rapid visual identification of approximate number of rounds remaining. Along with expanded feature set and compatibility, the GEN M3 Window incorporates new material technology and manufacturing processes for enhanced strength, durability, and reliability to exceed rigorous military performance specifications.