Holosun 2MOA Red Dot HS403B 20mm Micro Optical Red Dot Sight

HS403B is a 20mm micro sight. HS403B features Holosun’s Red Super LED with 50k hour battery life, 10 daylight and 2 night vision compatible reticle intensity settings. Its housing is made from 6061 aluminum and includes both a lower 1/3 co-witness mount (1.63") and a low mount (.75"). Additional features include Shake Awake technology, digital buttons for setting changes, rubber lens covers, and a side-mounted battery tray for the 2032 battery. HS403B is a versatile sight for users of all levels. Key Features: 2 MOA Dot Reticle Up to 50,000 Hours Battery Life (Setting 6) 12 Brightness Setting: 10 DL & 2 NV Compatible Convenient Tray Battery Compartment Parallax-free & Unlimited Eye Relief Holosun HS403B Micro Red Dot Optic (2 MOA) Sight Specifications: Window Size: 20mm Diameter Dimension (in): 2.45×1.43×1.6 Weight (oz): 2.82 Housing Material: 6061 T6 Aluminum Surface Finish: MAO Adjustment per Click: 0.5 MOA W&E Travel Range: ±50 MOA Storage Temperature: -40℃~70℃