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Holosun
Overview
The Holosun 403B Micro Red Dot Sight features a 2 MOA dot that provides precise aiming capabilities for various shooting applications. Designed as a red dot optic, it allows for rapid target acquisition and excellent visibility in a variety of lighting conditions. This sight is frequently found on builds featuring a pistol gas system, particularly in 5.56 NATO caliber configurations.
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Based on build data

BLEM PSA AR15 Complete Classic Stealth Lower, Black
Lower Receiver
Streamlight ProTac Rail Mount HL-X 1000 Lumen Weapon Light with Tapeswitch
Light
Rise Armament Super Sporting Ar15/10 Single Stage Trigger - Flat - Dtom Special Edition

Magpul RVG Rail Vertical Grip - Black
Foregrip
Holosun HM3X 3X Magnifier - Titanium

Daniel Defense Collapsible Mil-Spec Buttstock, Brown - 21-091-04179-011
Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| BLEM PSA AR15 Complete Classic Stealth Lower, Black | Lower Receiver | 3 |
| Streamlight ProTac Rail Mount HL-X 1000 Lumen Weapon Light with Tapeswitch | Light | 2 |
| Rise Armament Super Sporting Ar15/10 Single Stage Trigger - Flat - Dtom Special Edition | 2 | |
| Magpul RVG Rail Vertical Grip - Black | Foregrip | 2 |
| Holosun HM3X 3X Magnifier - Titanium | 2 | |
| Daniel Defense Collapsible Mil-Spec Buttstock, Brown - 21-091-04179-011 | 2 |
| Platform | Percentage |
|---|---|
| AR-15 | 90% |
| AR-9 | 10% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 62.5% |
| 300 Blackout | 25% |
| 9mm | 12.5% |
| Gas System | Percentage |
|---|---|
| Pistol | 100% |
Builds in the community that include the Holosun 403B Micro Red Dot Sight 2 MOA - HS403B
| Build | Parts | Total |
|---|---|---|
![]() | 31 | $2982.57 |
![]() | 20 | $1178.26 |
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