Magpul PMAG 30 GEN M3 Window Features The Magpul PMAG 30 GEN M3 Window incorporates advanced material technology and manufacturing processes to exceed rigorous military performance standards. This AR15 30 round magazine features transparent side windows that allow rapid visual identification of approximate remaining round count. Optimized for Colt-spec AR15/M4 platforms its modified geometry also supports compatibility with HK 416 MR556A1 M27 IAR British SA-80 FN SCAR MK 16/16S and other similar firearms. A USGI-spec stainless steel spring four-way anti-tilt follower and constant-curve internal geometry ensure consistent feeding performance. A redesigned bolt catch notch increases clearance while the over-travel stop helps prevent over-insertion on compatible platforms. Low profile ribs aggressive front and rear texturing and a paint pen dot matrix provide improved handling and easy identification with simple tool-less disassembly for maintenance. Magpul PMAG 30 GEN M3 Window Specifications Manufacturer: Magpul Model: PMAG 30 GEN M3 Window Caliber: 5.56x45mm .223 Rem Capacity: 30rd Color: OD Green Material: Polymer Length: 7.50 inch Weight: 5 oz Spring: USGI-Spec Stainless Steel Follower: Four-Way Anti-Tilt Compatibility: AR15 M4 and Compatible Platforms