The Magpul Enhanced Ejection Port Cover is a drop-in upgrade designed to provide an improved installation process, physical strength, and corrosion resistance over the standard USGI ejection port cover. Traditional stamped-steel ejection ports are malleable, prone to corrosion, and require tools to install. The Enhanced Ejection Port Cover snaps into place easily on forged Mil-spec uppers without having to remove your hand guard or barrel nut, wind any loose springs, or adjust small e-clips. Constructed of impact-resistant injection molded polymer, it is corrosion resistant and will not bend or deform from impacts. Features Durable, injection-molded polymer construction Corrosion resistant components Will not bend or deform from impacts Compatible with right hand, forged, Mil-spec AR15/M4 upper receivers that accept USGI ejection port covers. NOTE: May NOT be compatible with Aero Precision M4E1, BCM MK2, SIG MCX, and other reinforced and/or billet uppers that deviate from Mil-Spec design.
