NcStar 2nd Generation D3ARSGQLR2 Reflex Optic Features Black anodized aluminum construction with a very tough Armored Hood around the Optic body, with Tri-Rails for attaching accessories Fully Adjustable Green Dot Optic Elevation Windage Five brightness settings for the Green Dot Sight Integral fully adjustable Red Laser Elevation Windage Ability to use Green Dot or Red Laser Individually, or Both at the same time Electronic control panel for adjusting the brightness level of the Green dot reticle and for turning the Red Laser On/Off Adjustable Locking Quick Release Mount will mount onto most Weaver style and Picatinny rails Unlimited eye relief Green LED Light Emitting Diode 100% safe for the eyes Battery Type CR132A Battery Included Specifications Material Aluminum Color Black Overall Height 2.8 Overall Length 4.6 Overall Width 2.7 Weight 14.3 oz. Laser Class Class 3a Maximum Output Power 5mW Wavelength 635-655nm NcStar 2nd Generation D3ARSGQLR2 Reflex Optic Features Black anodized aluminum construction wi 8 Overall Length 4 6 Overall Width 2 7 Weight 14 3 oz