ProMag Sig MPX 9MM 50-Round Drum Magazine

Designed for reliability, this ProMag® 50-rd, polymer drum is meant to give you everything you expect in a well-functioning drum. You no longer have to compromise easier loads with failures to feed or struggle with overextending the ratcheting mechanism. It works like it should when it should. Featuring an injection-molded magazine follower, you’re getting a highly efficient follower that won’t give out when you need it most. Due to the enhanced strength of injection molding, a magazine body constructed of proprietary DuPont® Zytel™, and the heat-treated stamped steel upper magazine housing, you get incredible durability. Additionally, this drum includes a heat-treated stainless-steel wire, meaning it holds up to the stress of impact loads and is corrosion-resistant for shooting in various climates—grab yours today!