Description
Holosun HS507C-X3-RD-MRS 507COMP X3 Open Reflex Sight – 2 MOA Red Dot & 32 MOA Circle, RMR Footprint
The Holosun HS507C-X3-RD-MRS is a compact open reflex pistol sight built for concealed carry, duty applications, competition, and range shooting. It features Holosun’s Multi-Reticle System, allowing shooters to select between a precise 2 MOA red dot, a large 32 MOA circle, or a combined circle-dot reticle for fast and flexible aiming.
The 2 MOA dot supports precise shot placement, while the 32 MOA circle helps guide the eye for quicker target acquisition and faster transitions. With true 1X magnification, the optic provides a natural both-eyes-open sight picture for close-range engagement and everyday carry use.
Designed around the popular RMR footprint, the HS507C-X3-RD-MRS is compatible with many optic-ready pistol slides and RMR mounting plates. The reinforced 7075-T6 aluminum housing and anodized black finish provide durable protection for demanding use.
Solar Failsafe technology uses ambient light to help power the optic, while automatic brightness adjustment helps maintain reticle visibility in changing conditions. Shake Awake activates the optic when motion is detected, Memory Mode retains the previous brightness setting, and Lock Mode helps prevent accidental button adjustments.
The side-mounted CR1632 battery tray allows convenient battery replacement without removing the optic from the firearm. With an IP67 waterproof rating, this Holosun optic is built for reliable performance in rain, dust, recoil, and harsh environments.
Key Features
- Multi-Reticle System
- 2 MOA red dot reticle
- 32 MOA circle reticle
- Circle-dot reticle option
- True 1X magnification
- Open reflex pistol sight
- RMR footprint compatibility
- Solar Failsafe technology
- Automatic brightness adjustment
- Shake Awake motion activation
- Memory Mode retains brightness settings
- Lock Mode prevents accidental button changes
- Side-mounted CR1632 battery tray
- Rugged 7075-T6 aluminum housing
- IP67 waterproof rating
- Black anodized finish
- Ideal for concealed carry, duty, competition, and range use
Specifications
| Specification | Details |
|---|---|
| Brand | Holosun Technologies |
| Model | 507COMP X3 |
| Manufacturer Part Number | HS507C-X3-RD |
| UPC | 810047074557 |
| Type | Open Reflex Red Dot Sight |
| Magnification | 1X |
| Reticle | Red Dot / 32 MOA Circle |
| Reticle Size | 2 MOA Dot with 32 MOA Circle |
| Reticle System | Multi-Reticle System |
| Footprint | RMR Footprint |
| Battery Type | CR1632 |
| Battery Location | Side Tray |
| Power System | Solar Failsafe |
| Brightness Control | Automatic Brightness |
| Technology | Shake Awake, Memory Mode, Lock Mode |
| Housing Material | 7075-T6 Aluminum |
| Finish | Anodized |
| Color | Black |
| Waterproof Rating | IP67 |
| Subcategory | Red Dot Sights & Non-Magnified Optics |
| Condition | New |








