Description The A-Spec M3 is manufactured to be compatible for uses with a Shield RMS-C® footprint, and it boasts a red auto-brightness control reticle to accommodate shooting at any time, day or night. This optic is perfect for subcompact guns, and is notoriously durable – aluminum alloy housing, IP55 water-resistant, shockproof, able to withstand up to .375 H&H caliber and operate in temperatures from -22F to 122F. With a battery life up to 100,000 hours and an included rubber cover, low-profile fixed mount and manual, the A-Spec M3 is guaranteed to help you Make Your Mark. Included in Package Rubber Cover Low Profile Fixed Mount CR2032 Battery Batteries Used Type: CR2032 Quantity: 1 Product Downloads Product Manual (Online) Product Manual (PDF Download) Product Specifications Features Fits pistols with Shield RMS-C® footprint Auto-brightness control reticle Cowitness with standard pistol sights Red reticle illumination Lightweight compact aluminum alloy housing Rugged aluminum alloy housing IP55 water-resistant Shockproof Battery life up to 100,000 hours EXPORT CONTROL NOTICE: This product is controlled for export and in-country transfer under the Export Administration Regulations (EAR). division contrary to U.S. law prohibited. Specifications Reticle, Type 3 MOA Reticle, Color Red Setting, Brightness Auto Magnification (x) 1 Objective overall dimension (mm) 20 X 16 Eye relief (in/mm) Unlimited Elevation adjustment range (MOA) 80 Windage adjustment range (MOA) 130 Adjustment value (one click =) Continuous Parallax Setting 25yd - 8 Finish/Color Matte Black Body Material 6061-T6 aluminum Maximum Caliber .375 H&H IP Rating (waterproof) IP55 - Water Resistant Nitrogen Filled No Shockproof (yes/no) Yes, 3ft / .9m Fog Proof No Lens Coating AR Red Mount Type Weaver/Picatinny Footprint Shield RMS-C® Battery Type CR2032 Battery life, hours 500 - 100,000 Battery Voltage, V 3V Operating Temp,?F/?C - 22 to 122 / -30 to 50 Length sight only (in/mm) 1.6 / 40.8 Width sight only mount (in/mm) .9 / 23 Height sight only mount (in/mm) .89 / 22.8 Weight sight only mount (oz/g) .7 / 20 Length w/ low mount (in/mm) 1.6 / 40.8 Width w/ low mount (in/mm) 1.2 / 30.4 Height w/ low mount (in/mm) 1.33 / 33.9 Weight w/ low mount (oz.) 1.6 / 46