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℃
- Working Temperature: -30℃~60℃
- Submersion: IP67
- Vibration: 1000G