Magpul MAG560BLK PMAG GEN M3 20rd 223 Rem/5.56x45mm NATO Fits AR-15/M16/M4 Black Polymer

The next-generation PMAG 20 GEN M3 is a 20-round 5.56x45 NATO (.223 Remington) polymer magazine for AR15/M4 compatible weapons. Along with expanded feature set and compatibility the GEN M3 incorporates new material technology and manufacturing processes for enhanced strength durability and reliability to exceed rigorous military performance specifications. While the GEN M3 is optimized for Colt-spec AR15/M4 platforms modified internal and external geometry also permits operation with a range of additional weapons such as the HK