The NcStar Tactical dot sight features a tan colored optical body to perfectly match your tan and flat dark earth firearms. The LED illumination is 100% safe for the eyes and the 1x magnification provides unlimited eye relief for flexible mounting options. A rheostat knob with three brightness levels for makes adjusting the illumination level to your eyes easy.Features / SpecsBattery: CR2032Magnification: 1xObjective: 35mmEye Relief: UnlimitedDot Size: 3 MOATube Diameter: 30mmLength: 5"Weight: 8.90 ozFinish: Powder Coated TanReticle: Illuminated Red/Green/BlueAdjustment Size: 1" @ 100 ydsOptic Coating: PlatinumWindage Elevation: Adjustable