UTG 3.8" ITA Red/Green CQB Dot Sight with Integral Mount Quick Aim Electronic Dot Sight with Red/Green Dual Illumination 38mm Tube with Best in Class Emerald Lens Coating for Maximum Brightness and Clarity, Clear and Sharp 4.0 MOA Dot Consistent and Precise Coin-adjustable W/E Knobs with 1/2 MOA per Click Increments Includes Integral Picatinny Mounting Deck and Flip-open Lens Caps 2 year warranty Quick Aim Electronic Dot Sight with Red/Green Dual Illumination. 38mm Tube with Best in Class Emerald Lens Coating for Maximum Brightness and Clarity. Consistent and Precise Coin-adjustable W/E Knobs with 1/2 MOA per Click Increments. Clear and Sharp 4.0 MOA Dot. Optimal Brightness Settings for Variable Shooting Environment. Great Field of View and Unlimited Eye Relief. Includes Integral Picatinny Mounting Deck and Flip-open Lens Caps.