An absolute must on a competition or tactical shotgun. This button is made by CMM. REDESIGNED (longer and easier to manipulate) button is oblong shaped (1.25" x 0.640"). It has a black oxide finish. It's easy to locate by touch and can be manipulated, either with or without gloves. It also has a 0.050" projection in the center, on the back side, where it attaches to the factory "button", that makes for more positive engagement, without having to pound on it. NO GUNSMITHING REQUIRED.  Installation requires only basic tools and mechanical skills. Includes carrier latch, button and attachment screw.