Aim Sports is and industry leader bringing new, innovative, quality, products American shooters at a price we can afford! Be ready to quickly and accurately engage any target with this fantastic Aim Sports Micro Dot Sight that has all the features you are looking for in a no nonsense tactical CQB optic. The Micro Dot 1x20mm optic offers a dual color illuminated reticle with rheostat brightness adjustment. It has fully multicoated lenses and robust construction that make this optic fogproof, and shock resistant. An Aim Sports Micro Dot Sight 1x20 optic is the perfect choice for those that are serious about their AR15/M4 platform rifle. Specifications and Features: Aim Sports Micro Dot Sight RTDT125 Tactical Red Dot CQB Close Quarters Optic 1x Magnification 20mm Objective Lens Integrated Picatinny/Weaver Mount 4 MOA Dot Size Unlimited Eye Relief Multi-Coated Lens Protects Against Scratch and Abrasion Dual-Illuminated 2 Color Red or Green Dot Reticle Rheostat Adjustable Brightness Control Adjustable Windage and Elevation Aluminum Construction Fog Proof Shock Resistant Housing Nitrogen Charged with Weather Resistant Seals Anodized Aluminum Black Length 2.25" Weight 4.5 Ounces