The Holosun SCS 320 is the no-battery-tray enclosed green dot, purpose-built for SIG Sauer P320 optics-ready slides. Its Solar Charging Sight (SCS) system runs on an internal rechargeable cell topped up by ambient light — there's no removable battery to ever swap. It direct-mounts to P320 optics-ready slides with no adapter plate.
The sealed, enclosed emitter keeps the green dot protected from dust, lint and debris — a real edge for carry and duty. Holosun's Multi-Reticle System offers a 2 MOA dot, 32 MOA circle or both, with fully automatic brightness.
How It Compares
Run a Glock or Walther? See the SCS MOS or SCS PDP. Carrying slim? The SCS Carry (RMSc). Browse all enclosed red dot sights and Holosun pistol red dots; read enclosed vs open.
Key Features
- Solar Charging Sight — no removable battery, ever
- Multi-Reticle System (2 MOA dot / 32 MOA circle / circle-dot, green)
- Fully enclosed emitter; automatic brightness
- Direct-mount for SIG P320 (no adapter plate)
- Durable aluminium housing
Technical Specifications
| Magnification |
1x |
| Reticle |
2 MOA dot / 32 MOA circle (green), MRS |
| Brightness |
Automatic only |
| Click Value |
1 MOA |
| Power |
Internal rechargeable (solar charging) |
| Mount |
Direct (SIG P320 optics-ready) |
| Housing |
Aluminium; parallax-free |
What's Included
- Holosun SCS 320 green dot
- Mounting screws, adjustment tool, lens cloth, manual
UK Delivery & Support
UK-stocked and dispatched tracked from our UK warehouse — no import duties or customs delays — backed by UK-based support and Holosun's warranty.
Frequently Asked Questions
Does it ever need a battery change?
No — the SCS uses an internal rechargeable cell charged by ambient light, with no removable battery.
Which pistols does it fit?
It direct-mounts to SIG P320 optics-ready slides with no adapter plate.
Are there manual brightness controls?
No — brightness is fully automatic.
