Mounts on any gun equipped with Picatinny or Weaver rail. Essential info Compatibility: Picatinny / Weaver rail mount Reticle: 2 MOA dot & 65 MOA circle [red] The HS510C is an open reflex optical sight designed for rifle and carbine applications. Features include Holosun’s Super LED with up to 50k hours battery life, Multi-Reticle System, Solar Failsafe, and Shake Awake. MRS: Circle Dot; 2 MOA Dot; 65 MOA CircleUp to 50,000 Hours Battery Life (Setting 6)12 Brightness Setting: 10 DL & 2 NV CompatibleConvenient Tray Battery CompartmentParallax-free & Unlimited Eye Relief Specification Optical data Reticle: 2 MOA Dot & 65 MOA Circle Light Wavelength: 650nm Reticle Color: Red Parallax Free: Yes Unlimited Eye Relief: Yes Magnification: 1x Multi-Coatings: Yes Electronic data Power Source: Battery Battery Type: CR2032 Battery Life (Hours): 50000 Brightness Setting: 10 DL&2 NV Physical data Window Size: 0.91x1.26 Dimension (in): 3.3x1.68x1.78 Weight (oz): 4.94 Mechanical data Housing Material: Aluminum & Titanium Hood Surface Finish: MAO Adjustment per Click: 0.5 MOA W&E Travel Range: ±50 MOA Environment data Storage Temperature: -40℃~70℃ Working Temperature: -30℃~60℃ Submersion: IP67 Vibration: 1000G