The Leaper's UTG 3.8" ITA Red/Green CQB Dot Sight with Integral QD Mount is the choice for hunters and target shooters who value a large field of vision when making a shot. This sight also features unlimited eye relief and can be mounted on a variety of weapons, including shotguns, rifles, and pistols. Just aim and point the red or green dot on a target, and the sight will lock on for a more accurate shot every time. Quick Aim Electronic Dot Sight with Red/Green Dual Illumination38mm Tube with Best in Class Emerald Lens Coating for Maximum Brightness and ClarityConsistent and Precise Coin-adjustable W/E Knobs with 1/2 MOA per Click IncrementsClear and Sharp 4.0 MOA DotOptimal Brightness Settings for Variable Shooting EnvironmentGreat Field of View and Unlimited Eye ReliefIncludes Integral Picatinny Mounting Deck and Flip-open Lens Caps