Holosun HS403B 20mm Micro Red Dot Sight

HS403B is a 20mm micro sight designed for rifle and carbine applications. 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”) for low-comb height rifle applications.

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.

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

Includes:

• Lower 1/3 Cowitness Mount
• Low Profile Mount
• T10 L Key
• Rubber Cover
• User Manual
• CR2032 Battery
• Lens Cloth