Red Dot Holographic Sight Fit 20mm Rail Mount

SPECIFICATIONSBrand Name: NoneType: RIFLEOrigin: Mainland ChinaFunction: Red DotModel Number: LCOcolor: blackMaterial: AluminumBattery Type: CR123A 3v LithiumFit: 20mm Rail Operation Instructions: For optimum performance and to prevent damage to this percision Instrument, carefully all instructions. Features: Diamond coat, scratch resistant mangin lens for maximum field-of-view, brightness, and resolution Extremely durable aluminum housing 8 illumination settings for red and green dot Unlimited eye relief 1/2MOA click elevation/windage adjustment Wide field-of-view Blackened lens edges Specifications: Magnification:1X Sight window:1.26mmx.98mm Elevation adjustment range:60 MOA 20 MOA per revolution of adjustment Subtension of the aiming point:1.0 MOA Dot Operting Temperature Range:-20°F to +120°F(-29°C to+49°C) Storage Temperature Range:-40°F to++160°F(-40°C to +71°C) Power Supply: One(1)3V CR123A battery(not included) Dimensions:(LxWxH)91.4mmX57.1mmX61.2mm Battery changed sel