Holosun SCS-320-GR Solar Reflex Sight for P320
- Magnification Minimum: 1x
- Magnification Maximum: 1x
- Mounting Type: Integral Mount
- Reticle Type: Cross
Last refreshed Jun 22, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B0D8LLXPK2Model: SCS-320-GRCategory: Handgun Scopes
Colors Available
Need a different one? Pick on Amazon →
Overview
A solar-charging reflex sight built on the Delta Point Pro and DPP footprint, designed to mount directly to Sig P320 optics-ready slides without an adapter plate, with a 2 MOA dot, 32 MOA circle, or combined reticle option.
The solar charging system is the core feature here, using multi-directional light sensors to keep the internal battery topped off under most shooting conditions, backed by a rated 20,000-hour reserve for low-light use. One tradeoff worth knowing: it has no shake-awake feature, so it relies on light sensing rather than motion to wake from standby.
- Solar charging with light-sensor brightness
- 0.90 x 0.63 in viewing window
- IPX8 waterproofing, 5000G shock rating
- Multi-reticle: dot, circle, or combined
Who it's for
Handgun owners with a P320 or other DPP-footprint optics-ready slide who want a rugged, low-maintenance reflex sight for range or duty use fit this well. Shooters who specifically want shake-to-wake activation rather than light-based wake should check that feature elsewhere.
Pros and cons
- No shake-awake feature, relies on light sensing
- Only fits DPP-footprint optics-ready slides
Performance notes
The enclosed emitter design keeps debris and moisture off the internal lens elements, which matters most for a sight meant for range and duty use rather than sitting in a case. Brightness adjusts automatically through multi-directional solar sensors, with a manual override that locks in high brightness for 30 minutes when lighting changes quickly, such as moving from an outdoor to an indoor range.
Specifications
| Brand | HOLOSUN |
|---|---|
| Model | SCS-320-GR |
| Dimensions & fit | |
| Item Dimensions L x W x H | 1.9 × 1.1 × 1.1 inches |
| Power & efficiency | |
| Low Battery Indicator | Alerts well before power depletion |
| Rechargeable Battery | Up to 20,000-hour reserve, operates indefinitely with light exposure |
| Construction & materials | |
| Material Type | Aluminum |
| Color | Coyote Tan |
| Lens Color | Green |
| Compatibility & installation | |
| Mounting Type | Integral Mount |
| Compatible Devices | Pistol |
| Included components | |
| Unit Count | 1 |
| Included Components | Manual, Tool |
| Warranty & support | |
| Warranty Description | Limited lifetime |
| Other details | |
| Magnification Minimum | 1x |
| Magnification Maximum | 1x |
| Reticle Type | Cross |
| Night vision | No |
| Sport Type | Hunting |
| Thread Type | UNC |
| Product Style | Modern |
| Brightness Override Mode | Locks into high-brightness mode for 30 minutes |
| Enclosed Emitter Design | Prevents debris, moisture, and environmental interference |
| Larger Viewing Window | 0.90 x 0.63 in for quick target acquisition |
| Multi-Reticle System (MRS) | Choose between 2 MOA dot, 32 MOA circle, or combined reticle |
| Solar Charging System | Multi-directional sensors auto-adjust brightness to ambient light |
| Waterproof & Shockproof | IPX8 rating and tested to 5000G vibration resistance |
Frequently asked questions
Does the sight have a shake-awake feature?
No, at least one reviewer notes it lacks shake-awake and relies on its light sensors instead.
How does the solar charging work?
Multi-directional sensors adjust brightness to ambient light and keep the internal 20,000-hour battery reserve charged under most lighting.