In-Depth Look

HOLOSUN HS403B Red Dot Sight

Micro Sight Design The HS403B is a 20mm red dot sight designed for rifles and carbines, offering a compact and efficient solution for a variety of shooting applications.

Ultra-Efficient Light Source Equipped with Holosun's ultra-efficient 650nm Red Super LED, this sight boasts up to 50,000 hours of battery life. With 12 adjustable reticle intensity settings, you can tailor the light to your needs, ensuring optimal visibility under any conditions.

Durable Construction Crafted from 6061 T6 aluminum, the housing is both strong and lightweight. The sight includes a lower 1/3 co-witness mount (1.63") and a low mount (.75") for low-comb height applications, providing versatile mounting options.

Comprehensive Accessories Included are a lens cloth, rubber lens cover, T10 L key, and a CR2032 battery to ensure you're fully prepared for your next outing.

Shake-Awake Technology

Extend Battery Life Holosun's proprietary Shake-Awake technology automatically deactivates the LED when the sight is not in use, extending battery life significantly. Settings range from 10 minutes to 12 hours depending on the model, with the option to deactivate entirely if desired.

Instant Activation A simple touch instantly reactivates the LED, ensuring that your red dot sight is always ready when needed, saving precious time in hunting or target practice.

Multilayer Reflective Glass

Optical Quality and Durability Manufactured with optical-quality glass lenses and multilayer coatings, this sight maximizes light transmission while reducing glare and wear. Holosun's highly reflective coatings produce industry-leading reticle intensity, clarity, and battery efficiency.

Super LED Technology

Versatile Reticle Intensity Equipped with Holosun Super LED technology, the HS403B offers a wide range of reticle intensity settings. These ultralight and efficient LEDs can provide up to 50,000 hours of battery life.

Technical Specifications

• Reticle: Red 2 MOA
• Light Wavelength: 650nm
• Magnification: 1x
• Parallax-Free & Unlimited Eye Relief
• Power Source: Solar & Battery (CR2032)
• Battery Life (Hours): 50,000
• Brightness Setting: 10 DL & 2 NV
• Window Size: 20mm Diameter
• Housing Material: 6061 T6 Aluminum
• Adjustment per Click: 0.5 MOA
• W&E Travel Range: ±50 MOA
• Finish: Black