The HS403B is a 20mm micro optical sight designed for rifle and carbine applications. Features include 12 brightness settings, Holosun’s Super LED with up to 100k hour battery life, and 2 MOA Dot.
| Finish: | Micro Arc |
| Fabric/Material: | CNC Aluminum |
| Magnification: | 1 x |
| Objective Lens Diameter: | 20 mm |
| Reticle: | 2 MOA Dot |
| Illumination Type: | LED |
| Illumination Color: | Red |
| Adjustment Click Value: | 0.5 in at 100 yds |
| Optical Coating: | Multi-Layer Reflecting |
| Attachment/Mount Type: | Low Profile, 1/3 Co-Witness Mount, Quick Release |
| Battery Type: | CR2032 |
| Battery Life: | Up to 5 years |
| Operating Temperature: | 22 – 140 Fahrenheit |
| Water Resistance Level: | Waterproof |
| Water Resistant Mark: | 1 m |
| Length: | 63 mm |
| Width: | 30 mm |
| Height: | 58 mm |
| Brightness Index: | 2NV / 10DL |
| Tube Diameter: | 22 mm |
| W/E Travel at 100 Yds: | 50 MOA |
- Designed for day and night use
- Advanced LED technology allows for up to 50,000 of operation
- 2 MOA dot size
- Parallax-free with unlimited eye relief
- Unaffected by extreme weather conditions
- Rugged and reliable aluminum construction
- All lenses have multi-layer coatings
- Improved motion-activated “Shake Awake Technology”
- Multiple brightness settings
- Durable PEO/MAO finish





fiko (verified owner) –
Gute Ware .für Deutschland 15 tage Lieferung.Danke Schön
Joseph Carrington (verified owner) –
Very fast shipping!