Romeo5 gen ii compact red dot sights provide civilians and armed professionals a robust 1x aiming solution for any situation.Ultra-low parallax so point-of-aim is point-of-impact and the red dot remains parallel to the bore of your firearm no matter what your viewing angle is relative to the optical axis of the sight.Unlimited eye-relief allows you to acquire the aiming point and the target regardless of the position of your eye behind the sight.The readily available cr2032 battery is side-loading allowing for quick battery replacement (featuring 40 000+ hours or more of life).Dependable waterproof (ipx-7 rated for complete water immersion up to 1 atmosphere) and fog-proof performance.Battery Size: CR2032Magnification: 1xObjective: 20 mmField Of View: UnlimitedEye Relief: UnlimitedDot Size: 2 MOALength: 2.70"Weight: 5.50 ozReticle: 2 MOA Green DotAdjustment Size: 1 MOAProofs: Waterproof/Fog ProofOptic Coating: Spectracoat/Lensarmor/LenshieldWindage Elevation: Adjustable