The 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. Made in the USA. Angled view of open Magpul Enhanced Ejection Port Cover in Black shown on a rifle EASIER THAN... EASY Installs easily in seconds Direct replacement for USGI ejection port cover on forged Mil-spec upper receivers MORE RUGGED THAN METAL PORT COVERS Durable,injection-molded polymer construction Corrosion resistant components Will not bend or deform from impact