1.7" Height Red & Blue Dot Reflex Optic with integrated Green Laser is two sighting devices in a compact and sleek design. 1.7" Dot Height is set for 1/3 Co-Witnesses with AR15/M4 iron sights. No need for a 3/4" riser, this will attach directly to your AR15 receiver rail and is ready to go! Unlimited Eye Relief for flexible mounting. Red & Blue Dot LED (Light Emitting diode) 100% safe for the eyes. 3 MOA Red & Blue Dot has five brightness settings and is fully adjustable for Windage and Elevation. Integrated Green Laser is fully adjustable for Elevation & Windage, indpendant from the Red & Blue Dot. Red & Blue Dot reticle and Green Laser is controlled by an Electronic Control panel with push button controls. The optic uses a CR123A 3 volt Litium battery for a long battery life. Built in Auto Locking Quick Release Picatinny mount that is compatible with Weaver, Picatinny, MIL-STD 1913 rails. Black Anodized Aluminum body. Bikini style lens covers, mounting, and zeroing tools included.