SightMark Mini Shot A-Spec M3 Micro Reflex Sight 1x33 mm Black. These Red Dot Sights from SightMark are compatible with pistols bearing the Shield RMS-C footprint and is protected by a tough yet lightweight aluminum alloy housing that is shockproof and water-resistant. Boasting a battery life of up to 100000 hours this red dot sight is built to last and perform when you need it most. The A-Spec M3 features an auto-brightness control reticle that adapts to your environment to provide pinpoint precision day or night. This optic can be attached to Weaver or Picatinny rails and includes a rubber cover and low-profile fixed mount. Pick up the SightMark Mini Shot A-Spec M3 Micro Reflex Sight today to improve your accuracy at the range. Specifications for SightMark Mini Shot A-Spec 1x33 mm M3 Micro Reflex Sight: Manufacturer: SightMark Color: Black Finish: Matte Fabric/Material: 6061-T6 Aluminum Magnification: 1 x Objective Window Size: 20x16 mm Reticle: Multi Illumination Type: LED Illumination Color: Red Eye Relief: Unlimited Adjustment Type: MOA Emitter Type: Open Parallax: 25 yds to infinity Optical Coating: AR Red Battery Type: CR2032 Stand Alone Lithium Battery Life: 100000 hours Operating Temperature: -22 - 122 Fahrenheit Water Resistance Level: IP55 Shockproof: Yes Fogproof: No Magnification Type: Fixed Brightness Index: Auto Red Dot Sights-Footprint: Not Applicable Attachment Type: Picatinny Weaver Mount Type: Weaver Features of SightMark Mini Shot A-Spec M3 Micro Reflex Sight Fits pistols with Shield RMS-C footprint Auto-brightness control reticle Cowitness with standard pistol sights Red reticle illumination Lightweight compact aluminum alloy housing Package Contents: SightMark Mini Shot A-Spec M3 Micro Reflex Sight Rubber cover Low profile fixed mount Battery Manual SightMark SM26049: Mini Shot A-Spec M3 Micro Reflex Sight Black