3 Levels of intensity for Red, Blue and Green Dots Rugged black anodized aluminum construction 30mm Cantilever 45 degree angle mount Adjustable for windage and elevation Fits most standard 20mm rails Unlimited eye relief Flip Up lens covers In the Box 1x NcStar DRGB135 1x35 precision red/green/blue dot scope 1x spare CR2032 battery and 1x hex key Specifications: Construction Anodized AluminumReticle Red, Blue & Green DotObjective Lens Diameter 35mmLens Coating PlatinumMagnification 1xDot Size 3 MOAClick Value 1 MOABattery Type CR2032Mount Length 2.68Width 2.7Height 3.1Weight 8.9 oz. California Proposition 65 Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov