New Direct Mount Holosun SCS-320 Sight for SIG P320 PistolsThe Firearm Blog

New Direct Mount Holosun SCS-320 Sight for SIG P320 PistolsThe Firearm Blog

The extremely popular Holosun SCS has just had a new bit of flexibility added to the platform with the addition of the new SCS-320 model. The new SCS-320 is a direct-mount Delta Point Pro footprint and should be a simple install to any optics-ready SIG P320 without the use of an adapter plate. The SCS-320 shares all of the same features and reticle options as the other versions of the SCS optic, this time just in a footprint that allows for a direct mount on P320 handguns and sporting a brand new fully enclosed design.

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New Direct Mount Holosun SCS-320 Sight for SIG P320 Pistols

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 Forced 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:


• 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 Purged Enclosed Housing

• Travel Range ± 30 MOA

• 1.5 MOA Windage & Elevation Adjustment Per Click

• Window Size: 0.90 × 0.63 in

For more information, please visit

The New Direct Mount Holosun SCS-320 for the SIG P320 Series

According to the Holosun website, the new SCS-320 is currently available for $470 in a Green 2 MOA Dot version only. One of the primary benefits of the SCS system is that you should theoretically never have to replace a battery with the optics onboard 20,000-hour rechargeable battery which is charged simply by virtue of your gun being exposed to the sun. For more information on the new SCS-320 or to see other models of the SCS line, you can visit the Holosun Optics website here.

The New Direct Mount Holosun SCS-320 for the SIG P320 Series

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