The L7AWM is lightweight with steel feed lips that wrap completely around the magazine to maximize stiffness and reliability while preventing dimpling to the front of the magazine. A switchable drain lock in the floor plate comes standard on all L7s, allowing users to configure the magazine for either water-borne or extreme dust conditions. The L7AWM is designed to work in multiple weapon systems, including: SR25, DPMS 308, SIG 716, LMT, LM308, POF P308 and S&W M&P10. *Not compatible with Armalite AR-10B, Springfield Armory M1A, Rock River Arms LAR8, FN SCAR 17S, PTR-91, HK417 or other rifles that utilize M14, FN FAL, or HK 91/G3 patterned magazines.