HolosunGreen Dot Sight
Holosun SCS 320 Green Dot Sight Multi-Reticle System Solar Charging
- Reticle
- green Multi-Reticle System — 2 MOA dot, 32 MOA circle, or...
- Power
- Solar Charging Sight system — internal rechargeable cell, no removable battery
- Mount
- direct mount to SIG P320 optics-ready slides, no adapter plate
- Emitter
- fully enclosed, sealed against dust, lint and rain
In stock — 7–10 business day delivery
Tracked delivery, estimated 7–10 working days
Want to know when it's back? Email us and we'll let you know
Multi-buy savings
Mix any optics and lights — applied automatically
- 5%2 items
- 10%3 items
- 15%4 or more
Applied automatically at checkout — no code needed. Accessories such as tailcaps, switches and mounts aren't included.
- Shipped from the UK with tracked delivery
- 30-day returns on unused items
- Warranty support — contact us first
Delivery
Every order is shipped from the UK with tracked delivery. Estimated delivery time is 7–10 working days, and you will receive tracking details by email as soon as your order is on its way.
Returns
Unused items in their original packaging can be returned within 30 days. Email info@opticstrader.co.uk first and we will confirm the return details.
Warranty
Every product is new and boxed. If anything goes wrong, contact us first and we'll help with a manufacturer warranty claim where one applies.
The Holosun SCS 320 Green Dot Sight (SCS-320-GR) is a 1x enclosed pistol green dot sight that direct-mounts to SIG Sauer P320 optics-ready slides with no adapter plate, powered by an internal rechargeable cell charged by ambient light. It carries the Multi-Reticle System — a 2 MOA green dot, a 32 MOA circle, or both together as a circle-dot.
The Solar Charging Sight system removes the battery tray entirely: the internal rechargeable cell is topped up by light, so there is no cell to source and no replacement interval to track. Brightness is fully automatic, so nothing needs setting before a string of fire, and the enclosed emitter sits behind a sealed window that keeps dust and rain off the LED.
How it compares
The same solar-charging optic is cut for other slides: SCS MOS for Glock MOS, SCS PDP for the Walther PDP, SCS VP9 for the H&K VP9, SCS MP2 for the S&W M&P 2.0 and SCS P10 for the CZ P-10. For a slimline pistol on the RMSc footprint, see the SCS Carry green dot sight. Browse all enclosed red dot sights and the full Holosun green dot sight range.
Ideal for
- SIG Sauer P320 optics-ready pistols, including Section 1 long-barrelled conversions
- Airsoft GBB P320 and M17/M18 replica builds
- Shooters who never want to source or fit another optic battery
- Wet-weather range and outdoor use, where a sealed emitter stays clear
Key features
- Reticle: green Multi-Reticle System — 2 MOA dot, 32 MOA circle, or circle-dot
- Power: Solar Charging Sight system — internal rechargeable cell, no removable battery
- Mount: direct mount to SIG P320 optics-ready slides, no adapter plate
- Emitter: fully enclosed, sealed against dust, lint and rain
- Illumination: automatic brightness adjustment only, no buttons to set
- Adjustment: 1 MOA per click, parallax-free
- Housing: aluminium
| Optic Type | Enclosed pistol green dot sight, 1x (non-magnified) |
| Reticle | Multi-Reticle System — 2 MOA dot / 32 MOA circle / circle-dot |
| Reticle Colour | Green |
| Magnification | 1x, parallax-free |
| Mounting System | Direct mount to SIG Sauer P320 optics-ready slides |
| Battery | Internal rechargeable cell, solar charging — no removable battery |
| Illumination | Automatic brightness adjustment only |
| Click Value | 1 MOA per click |
| Housing | Aluminium |
| MPN | SCS-320-GR |
What pistols does the Holosun SCS 320 fit?
The Holosun SCS 320 Green Dot Sight direct-mounts to SIG Sauer P320 optics-ready slides with no adapter plate required. It is cut for that slide pattern specifically, so it is not an RMR- or RMSc-footprint optic and will not fit other slides.
Does the Holosun SCS 320 ever need a battery change?
No. The Holosun SCS 320 uses an internal rechargeable cell charged by ambient light, so there is no removable battery and no tray to open.
Can I set the brightness on the Holosun SCS 320?
No. Brightness on the Holosun SCS 320 is fully automatic with no manual settings, which is why there are no buttons on the housing.
What reticle options does the Holosun SCS 320 have?
The Holosun SCS 320 uses the Multi-Reticle System, which switches between a 2 MOA green dot on its own, a 32 MOA circle on its own, and both together as a circle-dot.
Why choose an enclosed emitter over an open one?
The sealed window on the Holosun SCS 320 keeps rain, dust and lint away from the emitter. On an open-emitter optic those can settle in front of the LED and dim or block the dot, which matters on a British range in winter.
Every order is shipped from the UK with tracked delivery, with an estimated delivery time of 7–10 working days. Unused items in their original packaging can be returned within 30 days for a full refund.