Truglo's Ignite Mini Green Dot features a 2 MOA Green dot reticle with a 22mm objective. It utilizes digital push-button brightness controls, 10 brightness settings and remembers last used brightness settings. The Ignite Mini system also features an auto off feature after 4 hours of idle time. The green dot system is constructed of aluminum with nitrogen filled glass. Includes low and high Picatinny/Weaver rail mounts, battery and rubber lens cover, locking adjustment turrets