Magpul PMAG Gen M3 Window AR10/M110/SR25 Platform .308/762 Rifle Magazine - 25 Rounds - The 7.62x51 NATO (.308 Winchester) PMAG Gen M3 is a lightweight, cost-effective, high-reliability magazine for AR10/M110/SR25 Platform rifles featuring a constant-curve body, anti-tilt follower, and a snap on Impact/Dust Cover. Designed specifically for military-issue MK11/M110 rifles and mil-spec ammunition (including M118LR), the PMAG Gen M3 is less than half the weight of standard issue steel magazines and maintains a service life round count approximately equal to the rifle barrel itself. True Round Capacity That Does Not Require Limiters, Pins Or Rivets High-Quality Stainless-Steel Spring For Corrosion Resistance Constant-Curve Internal Geometry For Smooth Feeding Impact And Crush Resistant Polymer Construction Anti-Glare Translucent Window On Both Sides Multi-Use Impact/Dust Cover Flared Floorplate Made In The USA