The 403B is a small compact micro red dot optic. Employing Holosun’s LED technology, the lifetime for one CR2032 battery can be up to 5 years. This optic features our “Shake Awake” technology that powers the optic on with slight movement of the 403B. It may be installed on various firearms such as shotguns, pistols, air rifles and crossbows. The HS403B is compatible with standard mounts.

2 MOA Circle Dot. Designed for day and night use. Up to 50,000 hours of operation on one CR2032 battery. Comes with low mount and 1/3 Co-witness mount.

OPTICAL DATA
Light Source: LED
Reticle: 2MOA Dot
Parallax Free: Yes
Unlimited Eye Relief: Yes
Magnification: 1x
Multi-Coatings: Yes
Integrated Laser: No

ELECTRONIC DATA
Battery Type: CR2032
Battery Life: Up to 50,000 Hours
Brightness Setting: 10 Daylight & 2 NV Compatible

MECHANICAL DATA
Housing Material: 6061 Aluminum
Surface Finish: MAO
Housing Color: Black
Adjustment per Click: 0.5 MOA
W&E Travel Range: ±50 MOA
Storage Temperature: -40℉ - 158℉
Working Temperature: -22℉ - 140℉
Submersion: IP67
Vibration: Up to 1000G

PHYSICAL DATA
Window Size: 20mm Diameter
Dimension (in): 2.44 x 1.18 x 1.45
Weight (oz): 4.3
Central Height (in): 1.63