The State-of the-Art engineering, manufacturing and quality assurance methods are integrated into leading technologies ensuring the products we produce exceed even the most stringent industry standards. All of our products are rigorously tested in the harshest environments and under extreme conditions by some of the best tactical units in the world. Our unique production standards are first and foremost preceded by operational field experience, leading the way in tactical accessory utilization. Mag-well is universal for the 1st-4th Generation Glock . Its Aluminum 1 piece design is finished in a black matte, smooth Anodized finish. The mag-well is slightly more flared at the base to be wider than the stock opening, which is ideal for quickly inserting the magazine in the pistol during reloading, helping build proper muscle memory for improved consistency and reload time. Kits Including magwell body, the screw and wrench Finished in a black matte 6061 aluminum, smooth Anodized finish. Fits: for Glock 17 Gen 3/4 Compatible with Glock® models (17, 17L, 22, 24, 31, 34, 35 and 37)