Integral compensator with a single port redirects gas reduces muzzle rise and enhances control; Central Operating Group is self-contained and serialized, providing a robust housing for the patent pending system; Variable Interface System achieves a low, direct mount optics solution for improved sight picture and intuitive alignment; Deeply machined crisp serrations offer a strong grip in any condition; Oversized for use with gloved hands, the Echelon features an enlarged trigger guard that is undercut; Common indexing points are textured for an extra-firm grip; Optics Ready Slide; Ambidextrous slide stop and magazine release for intuitive use; Comes with (2) 15-round magazines; Double-zipper case included