403B is a 20mm micro sight designed for rifle and carbine applications. 403B features Holosun’s 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. 403B is a versatile sight for users of all levels.
OPTICAL SPECS
| Reticle |
2 MOA Dot |
| Light Wavelength |
650nm |
| Reticle Color |
Red |
| Parallax Free |
Yes |
| Unlimited Eye Relief |
Yes |
| Magnification |
1x |
| Multi-Coatings |
Yes |
ELECTRONIC SPECS
| Power Source |
Battery |
| Battery Type |
CR2032 |
| Battery Life (Hours) |
50000 |
| Brightness Setting |
10 DL&2 NV |
PHYSICAL SPECS
| Window Size |
20mm Diameter |
| Dimension (in) |
2.45×1.43×1.6 |
| Weight (oz) |
2.82 |
MECHANICAL SPECS
| Housing Material |
6061 T6 Aluminum |
| Surface Finish |
MAO |
| Adjustment per Click |
0.5 MOA |
| W&E Travel Range |
±50 MOA |
ENVIRONMENT SPECS
| Storage Temperature |
-40℃~70℃ |
| Working Temperature |
-30℃~60℃ |
| Submersion |
IP67 |
| Vibration |
1000G |
