A rugged, micro red dot optic ideal for a wide-range of shooting applications, the mini shot a-spec m3 reflex sights wide field of view, 3 moa red dot reticle and included ar riser and low-profile mounts allow it to be used effectively and comfortably on pistols, rifles and even shotguns.The mini a-spec features an automatic brightness setting, ambidextrous digital brightness controls permit the a-spec to be used in virtually any environment, from sunny days to low-light conditions, coated and scratch-resistant lens, ip55 waterproof rating and are both shockproof and dustproof.Battery Size: CR2032Magnification: 1xObjective: 20mm x 16mmField Of View: VariableEye Relief: UnlimitedDot Size: 1 MOA/5 MOALength: 1.60"Weight: 0.70 ozReticle: 3 MOA Red Dot IlluminatedAdjustment Size: 1.0 MOAProofs: IP55 Water Resistant/ ShockproofOptic Coating: Fully Multi-Coated AR RedWindage Elevation: Adjustable