Sig's romeo4t pro is designed for modern semi-automatic pistols msr platforms and shotguns.Short and medium range engagements and recreational shooting across a wide range of calibers and light conditions.Features motac motion activated illumination system unlimited eye-relief and red led illumination for daylight visibility quad ballistic circle dot reticle and extended runtime.Top mounted activation with nv override control.Includes clear flipbacks/lens covers opaque front flip back.Battery Size: CR2032Magnification: 1xObjective: 20mmField Of View: UnlimitedEye Relief: UnlimitedDot Size: 2MOA/65MOALength: 2.66"Weight: 6.3 ozReticle: 2 MOA Red Quad Ballistic Circle DotAdjustment Size: 0.50 MOAProofs: Fog Proof/WaterproofOptic Coating: SpectraCoatWindage Elevation: Adjustable