Holosun HS403B Paralow Red Dot Sight - 1x 2 MOA Dot, Picatinny Mounts, FDEHolosun$155.16
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Holosun
The Holosun HS503R micro red dot sight brings compact, fast-acquisition optics to AR-15s, carbines, and other modern rifles without eating up rail real estate. This 1x sight is built for shooters who need reliable aiming solutions at close to intermediate ranges—whether you're running a 3-gun course, defending your home, or hunting in tight cover. The 20mm tube fits snugly on Picatinny rails and won't obstruct co-witnessed iron sights, making it a natural fit for backup or primary optics duty on any tactical or sport rifle setup.
What sets the HS503R apart is flexibility. The rotary switch lets you move between different reticle options without hunting through menus, and the 12 brightness settings dial in the perfect dot intensity for your lighting conditions—bright sun, overcast, or indoors. Holosun's proven Super LED engine delivers exceptional runtime; you'll get up to 50,000 hours from a single battery, so your sight stays ready whether you mount it year-round or break it out when needed.
This is a no-nonsense optic for serious users who value durability and user control. If you're building a rifle that demands quick target acquisition and a compact footprint, the HS503R competes hard without pretension.
| Magnification | 1x |
| Objective Diameter | 20mm |
| Mount Type | Picatinny |
| Reticle Options | Multi-reticle selectable system |
| Brightness Settings | 12 |
| Battery Life | Up to 50,000 hours |
The HS503R comes with Picatinny mount options, so it installs directly to any standard Picatinny rail without additional adapters.
Yes. The compact 20mm tube and 1x design are engineered to coexist with co-witnessed irons or offset backup sights.
The rotary switch lets you cycle through the multi-reticle options without menus or complicated controls—fast, intuitive, field-friendly.
The Super LED delivers up to 50,000 hours of runtime on a single battery, meaning you can expect years of continuous operation under typical use.
Holosun
The Holosun HS503R micro red dot sight brings compact, fast-acquisition optics to AR-15s, carbines, and other modern rifles without eating up rail real estate. This 1x sight is built for shooters who need reliable aiming solutions at close to intermediate ranges—whether you're running a 3-gun course, defending your home, or hunting in tight cover. The 20mm tube fits snugly on Picatinny rails and won't obstruct co-witnessed iron sights, making it a natural fit for backup or primary optics duty on any tactical or sport rifle setup.
What sets the HS503R apart is flexibility. The rotary switch lets you move between different reticle options without hunting through menus, and the 12 brightness settings dial in the perfect dot intensity for your lighting conditions—bright sun, overcast, or indoors. Holosun's proven Super LED engine delivers exceptional runtime; you'll get up to 50,000 hours from a single battery, so your sight stays ready whether you mount it year-round or break it out when needed.
This is a no-nonsense optic for serious users who value durability and user control. If you're building a rifle that demands quick target acquisition and a compact footprint, the HS503R competes hard without pretension.
| Magnification | 1x |
| Objective Diameter | 20mm |
| Mount Type | Picatinny |
| Reticle Options | Multi-reticle selectable system |
| Brightness Settings | 12 |
| Battery Life | Up to 50,000 hours |
The HS503R comes with Picatinny mount options, so it installs directly to any standard Picatinny rail without additional adapters.
Yes. The compact 20mm tube and 1x design are engineered to coexist with co-witnessed irons or offset backup sights.
The rotary switch lets you cycle through the multi-reticle options without menus or complicated controls—fast, intuitive, field-friendly.
The Super LED delivers up to 50,000 hours of runtime on a single battery, meaning you can expect years of continuous operation under typical use.
