Product Overview
HS403B is a 20mm micro sight designed for rifle and carbine applications. HS403B features Holosuns 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.
| Brand | Holosun |
| Category | Red Dot Sights |
| Model | HS403B |
| Magnification | 1x |
| Color | Black Anodized |
| Reticle | 2 MOA Red Dot |
| Firearm Type | Carbine / Rifle |
| Mount Type | Picatinny Rail |
| Wavelength | 650nM |
| Adjustment Size | .50 MOA |
| Objective | 20mm |
| Brightness Settings | 10 Day / 2 Night |
| Eye Relief | Unlimited |
| Switch Type | Shake Awake Sensor |
| Battery Size | CR2032 |
| Windage Adjustment | 50 MOA |
| Length | 2.45" |
| Proofs | Waterproof |
| Parallax Adjustment | Parallax Free |
| Power Source | Adjustable |
| Battery Life | 50,000 hrs |
| Bulb Type | LED |
| Dot Size | 2 MOA |
| Elevation Adjustment | 50 MOA |
| Height | 1.60" |
| Includes | Lower 1 / 3 Cowitness Mount / T10 L Key / Manual / Lens Cloth / Low Profile Mount / Rubber Cover / Battery |
| Optic Coating | Multi-Coated |
| Width | 1.43" |
| Weight | 2.82 oz |
| Controls | Top Mounted |
| Windage Elevation | Adjustable |
