Description
The Holosun SCS-320-GR is a solar-powered enclosed pistol optic that mounts directly to SIG P320 optics-ready slides (DPP footprint) without an adapter plate. It uses a solar panel with automatic brightness control and an internal rechargeable battery rated for up to 20,000 hours of reserve runtime. The reticle is Multi-Reticle System: 2 MOA dot / 32 MOA circle / circle-dot, green (540 nm). Suits SIG Sauer P320 optics-ready pistols and other DPP-footprint slides. Specifications below are from the manufacturer’s published data.
Key specifications
- Reticle: Multi-Reticle System: 2 MOA dot / 32 MOA circle / circle-dot, green (540 nm)
- Type: Direct-mount solar reflex pistol sight (enclosed emitter)
- Fits: SIG P320 optics-ready slides and other DPP-footprint applications (direct mount)
- Window: 0.9″ x 0.63″
- Housing: 7075 T6 aluminium, anodised black
- Battery: Internal rechargeable (solar charging); 20,000 h reserve
- Brightness settings: Auto / brightness override (setting 9)
- Power features: Solar charging, automatic brightness control
- Click value: 1.5 MOA
- Adjustment range: +/-30 MOA
- Waterproof: IPX8
- Shock rating: 5000G
- Dimensions: 1.85″ x 1.15″ x 1.06″
- Weight: 1.35 oz
- Magnification: 1x
- Light source: LED
- Warranty: Metal housing and optical system: lifetime of the product; LED illumination: 10 years from manufacture (registration required)
- In the box: Optic, 2x M3x8.5mm screws, lens cloth, multi-tool, manual, warranty card
Frequently asked questions
What reticle does the Holosun SCS-320-GR have?
Multi-Reticle System: 2 MOA dot / 32 MOA circle / circle-dot, green (540 nm), per the holosun.com specification page.
Is the SCS-320 waterproof?
Holosun rates it IPX8. It also has a solar failsafe panel so the reticle stays on if the battery is flat.
Do I need a firearms licence to buy this optic?
No. Optics and mounts are not controlled items in Australia and ship Australia-wide from 3 Gun Tactical, Tingalpa QLD.
3 Gun Tactical, Tingalpa QLD — Licensed Firearms Dealer 50001578. Optics, mounts and accessories can be purchased without a firearms licence and are shipped Australia-wide. Source: Holosun.








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