The UTG 4.2" CQB Dot with QD Mount is ideal for your pistol, shotgun or rifle. The illumination rheostat with variable brightness levels offers stealthy and infinitely fine adjustments of the 4.0 MOA Dot Reticle. Features optimal height design to Co-witness with iron sights and aim and instant lock on target to enhance shooting accuracy. Includes both smart adaptor and straight-up quick detachable tactical mount with innovative quick detach mounting deck to use on any Picatinny rail.