1.7 Height Red & Blue Dot Reflex Optic is 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.Red & Blue Dot reticle is controlled by an Electronic Control panel with push button controls. The Electronic Control panel turns On/Off, adjusts the brightness levels, and changes the Dot Reticle from Red & Blue colors.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 bodyBikini style lens covers, mounting, and zeroing tools included.International orders will not include batteries.MAGNIFICATION1XDOT SIZE3 MOADOT COLORSRED & BLUEOBJECTIVE DIAMETER25MMWEIGHT6.4 OZ.LENTH2.7LENS COATINGPLATINUMBATTERYCR123A etail