The HS403R is a 20mm micro sight designed for rifle and carbine applications. HS403R features a Rotary switch to select reticle intensity, Holosuns Red Super LED with 50k hour battery life, and a 2MOA dot with 10 daylight and 2 night vision compatible reticle intensity settings.HS403R housing is made from durable cast 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 rubber lens covers, and a battery compartment integrated into the Rotary switch for the 2032 battery. HS403R is a versatile sight for users of all levels.
| FireArm | No |
| Battery Size | CR2032 |
| Magnification | 1x |
| Eye Relief | Unlimited |
| Finish | Black Anodized |
| Windage Elevation | Adjustable |
| Length | 2.57″ |
| Weight | 2.82 oz |
| Optic Coating | Multi-Coated |
| Dot Size | 2 MOA |
| Tube Diameter | 20mm |
| Reticle | 2 MOA Red Dot |
| Proofs | Waterproof |
| Adjustment Size | 0.50 MOA |
| Objective | 20 mm |
| Field of View | Unlimited |










