A rugged, micro red dot optic ideal for a wide-range of shooting applications, the mini shot a-spec m1 reflex sights wide field of view, 2 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 10 reticle brightness settings, 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, ip67 waterproof rating and are both shockproof and dustproof.Battery Size: CR1632Magnification: 1xObjective: 22mm x 17mmField Of View: VariableEye Relief: UnlimitedDot Size: 2 MOALength: 1.86"Weight: 2.30 ozFinish: Matte BlackReticle: 2 MOA Red DotAdjustment Size: 1.0 MOAProofs: Dustproof/Shockproof/WaterproofOptic Coating: Fully Multi-Coated AR RedWindage Elevation: Adjustable