Tacfire 1X30 Dual Ill. Red/Green Tri-Dot Reticle Weaver Base w/Flip-Up Lens/Crossbow, Black TacFire official product, Tactical 1x30 Red/Green Illuminated Crossbow Reticle Dot Sight Multi Lens Coating ,4 MOA , 5 Brightness Levels for each Color, LED (Light Emitting Diode) 100% Safe for the Eyes, Unlimited Eye Relief for Multi Purpose. Integrated Picatinny/Weaver Adjustable Mount Can Work On Both Long and Compact Size Rails , from 1.04" to 1.94" Maximum Length: 4.75 inches Weight: 8.3 oz Heavy Duty Design , Comes with the Front and Rear Lens Covers . Crossbow in the picture is NOT included.