Feature A Precise Target Control: 3 MOA Dot Covers Minimal Target Area About the Height of a Lighter at 100 Yards for Reliable Accurate Impact A Wide View Targeting: 22x26 mm / 0.85x1.0 in Extra-Large Window Provides Faster Sight Alignment and Improved Target Awareness A Smart Light Adaptation: Automatic Light Sensor Adjusts Reticle Brightness Based on Changing Ambient Light for Clear Outdoor Visibility A Flexible Light Visibility: 8-Level Red Illumination with 2 NV Modes Adapts Smoothly to Bright Daylight and Low-Light Environments A Rugged Weather Reliability: IPX6 Waterproof Rating Maintains Stable Performance During Heavy Rain and Demanding Outdoor Use A Broad Platform Compatibility: MOJ Footprint Compatible w/ the RMR Pattern Supports GlockA(R) 17/19 MOS and Walther PDP Platforms Specification See our Terminology Guide for detailed explanations of each specification. Magnification: N/A Window Size: 22x26 Overall Length: 49.5mm / 1.9 inch Mount Length: 45mm / 1.8 inch Width: 27.4mm / 1.1 inch Body Profile: 7mm / 0.275" Weight (net, without mount base): 30g / 1.0oz Eye Relief: Free Optics Coating: Multi coated Click Value: N/A Dot Size: 3MOA Elevation Range: 45 MOA Windage Range: 45 MOA Brightness Level: Manual control 8 Levels & 2 NV & automatic light sensor Footprint: Vector Optics MOJ Batter Type: CR2032 Finish: FDE Two modes: Press &';+&'; more than 3 seconds to change the mode. Press &';-&'; more than 3 seconds to turn off the sight #Manual control (4 Hours Auto Shut Down) #Automatic light sensor Pistol application for R-M-R footprint High quality aluminum alloy 6061 T6 in durable black matte finish >20,000 hours battery runtime (at weakest visible dot level) Tested on 9mm Pistol, 338 Lapua Magnum rifle and 12GA shotgun Package includes: retail package, rubber lens cover, hex keys and cleaning cloth etc (the sight does NOT come with a weaver mount base) Footprint MOJ Footprint A Compatible Industry Standard: Trijicon RMRA(R) A Original Compatible Pistol Optics-Ready (O.R.) Model: GLOCKA(R) Standard MOS Gen4/5 (w/ adapter plate), WaltherA(R) PDP (w/ adapter plate), CZ P-10 OR / CZ Shadow 2 - Optics Ready (need an optics ready plate), TAURUSA(R) G3 T.O.R.O (w/ adapter plate), M&PA(R) M2.0 C.O.R.E. (w/ adapter plate), ect. For more information about FOOTPRINT, please refer to the blog. Video