The Holosun HS403B FDE is a compact and efficient 20mm micro red dot sight, meticulously engineered for rifle and carbine applications.
Featuring a precise 2 MOA red dot reticle, it ensures rapid target acquisition and enhanced shooting accuracy.
Constructed from durable 6061 T6 aluminum with a MAO (Micro Arc Oxidation) finish, the HS403B offers both lightweight handling and robust performance, making it suitable for diverse shooting environments.
The Holosun HS403B stands out as a reliable and versatile red dot sight, offering advanced features tailored to meet the needs of both professional shooters and enthusiasts.
Key Features:
- Extended Battery Life: Utilizing Holosun's Super LED technology, the HS403B delivers up to 50,000 hours of operation on a single CR2032 battery, minimizing the need for frequent replacements.
- Shake Awake™ Technology: This innovative feature automatically powers the optic on when motion is detected and turns it off during periods of inactivity, thereby conserving battery life.
- Brightness Settings: Equipped with 12 brightness levels—10 for daylight and 2 compatible with night vision—the HS403B allows for optimal reticle visibility in varying lighting conditions.
- Parallax-Free with Unlimited Eye Relief: Designed to be parallax-free, this sight ensures that the reticle remains on target regardless of eye position, offering unlimited eye relief for comfortable and flexible shooting.
- Multiple Mounting Options: The HS403B includes both a lower 1/3 co-witness mount (1.63") and a low-profile mount (0.75"), providing versatility to accommodate various shooting preferences and firearm configurations.
Technical Specifications:
Reticle: 2 MOA Red Dot
Light Wavelength: 650nm
Magnification: 1x
Multi-Coatings: Yes
Window Size: 20mm Diameter
Dimensions: 62.2mm x 36.3mm x 40.6mm
Weight: 80g
Housing Material: 6061 T6 Aluminum
Surface Finish: MAO (Micro Arc Oxidation)
Adjustment per Click: 0.5 MOA
W&E Travel Range: ±50 MOA
Storage Temperature: -40℃ to 70℃
Operating Temperature: -30℃ to 60℃
Submersion: IP67 Rated
Vibration Resistance: 1000G
Included in the Box:
Lower 1/3 Co-witness Mount
Low Profile Mount
T10 Torx Tool
Rubber Cover
User Manual
CR2032 Battery