News|Gear & Optics

By Drew Bryant
September 14th, 2023,

Holosun Optics has gained a reputation for making innovative, reliable, and rugged optics for pistols and rifles. This pedigree has pushed other optic manufacturers to innovate while being price-competitive with Holosun optics. One of Holosun’s most popular innovations is the Solar Charging Sight series of red dot optics. Holosun is proud to introduce the newest entry to the SCS series with the SCS-320. The new SCS features a 20,000 hr rechargeable battery, has a Delta Point Foot, features Holosun’s multi-reticle design, and is fully enclosed.

Below are the product details and specs for the new Holosun SCS-320.

Product Details

Modular firearms are nothing new. They’ve been around for well over 100 years. Despite this, SIG successfully developed one of the most modular pistols. So successful that the US Armed Forces uses a variant of these modular pistols as the M17/18. The civilian model of the M17/18 is the SIG P320, a pistol that can be customized for concealed carry, competition, or just plinking at the range. Users can attach a pistol optic with their milled slides for some of the best and most consistent loadouts.

The SCS-320 (Solar Charging Sight) is designed for P320 optics-ready handguns and other DPP footprints. It takes the already well-designed P320 and augments it for optimal performance. The new optic attaches directly to the slide without needing an adapter plate. For perfect reticle illumination, the unit uses multidirectional light sensors in complement with a solar charging system to adjust brightness automatically. The SCS can operate indefinitely using an internal, rechargeable 20,000-hour battery, meaning you will never need to change batteries again. While brightness is automatically calibrated, an intensity override function locks the optic into a high-brightness mode for 30 minutes.

Three reticle options are available for the SCS320: MRS 32 MOA circle with 2 MOA dot, standalone 2 MOA dot, or standalone 32 MOA circle. Adjustments are 1 MOA per click with a full +/- 30 MOA travel range.

The aspheric glass lens provides zero distortion and is protected in the 7075 T6 aluminum housing and nitrogen purged for the best results. To be as watertight as possible, the SCS320 is IPX8 certified. 0.90×0.63 inch window provides a large area of view with superior optics availability.

For those shooters who want to incorporate one of the best and newest long-life optics for their P320 pistol, the SCS320 is made to fit the bill. There are fewer pieces to keep track of, there is no need for additional maintenance tools, and no longer will a user need to keep spare batteries on hand.

Learn more about the

Holosun SCS-320 at:

Warranty information can be found at:

Tech & Features

• 20,000-Hour Power Reserve

• Aspherical Glass Lens with Zero Distortion

• Solar Charging Internal Battery

• Multi-Sensor Auto Brightness

• Brightness Intensity Override System

• Multiple Reticle System™ (MRS): 32 MOA Circle & 2 MOA Dot; 2 MOA Dot; 32 MOA Circle

• Direct Fit For Sig Sauer Optics-Ready P320 Handguns & DPP Footprint Applications


• IPX8 Certified Waterproof

• Nitrogen-enclosed Enclosed Housing

• Travel Range ± 30 MOA

• 1.5 MOA Windage & Elevation Adjustment Per Click

• Window Size: 0.90 × 0.63 in

• 7075 T6 Aluminum Housing

For more information, please visit

The Holosun SCS-320 is currently available on Holosun’s website and retails for $470 in a Green 2 MOA version only. The intrigue of the new SCS-320 from Holosun is that it offers a compact, rugged, and features an enclosed emitter red dot on a DDP footprint. The innovative addition of a 20,000 hr rechargeable battery housed internally with the SCS grants users unlimited battery life. For more information on the new SCS-320 or to see other models of the SCS line, click here.

Leave a Reply