Description
If you need a full-size, CA-compliant SIG Sauer P320-XFULL, this is the one. We started stocking this in Q4 2025, and it’s become a steady seller for folks who want the modularity of the P320 platform without the hassle of finding a roster-approved version. The X-FULL grip module and slide give you a flat-shooting, easy-to-control pistol right out of the box. It’s built for duty, home defense, or range work — and it’s ready to ship from our Indianapolis warehouse today. On our scale this pistol weighs in at 2.0 oz (unloaded with mag), so you know exactly what you’re getting.
Key Highlights
- CA-compliant model — on the California Roster, so it’s good to go for CA buyers.
- X-FULL grip module with integrated trigger guard undercut and aggressive texture for a secure hold.
- Factory optics-ready slide with removable rear plate — accepts Trijicon RMR, Holosun, and other popular footprints.
- Works with both factory and aftermarket sights — we’ve confirmed fit with Trijicon and AmeriGlo.
- Includes two 10-round magazines (CA-compliant) and SIG’s standard X-Series flat trigger.
| Caliber | 9mm Luger |
| Barrel Length | 4.7 inches |
| Overall Length | 8.5 inches |
| Height | 5.5 inches |
| Width | 1.3 inches |
| Weight (measured) | 2.0 oz (unloaded, with magazine) |
| Magazine Capacity | 10 rounds (CA-compliant) |
| Frame Material | Polymer grip module |
What Buyers Ask
Is this actually on the California Roster?
Yes. This is the CA-compliant SKU from SIG Sauer, listed on the California Roster of Handguns Certified for Sale. It includes the required magazine disconnect and loaded chamber indicator.
Will this accept my existing P320 holster?
It will fit most holsters designed for a full-size P320 with a 4.7-inch barrel. The X-FULL grip is slightly different from the standard full-size frame, so retention may vary — test with your specific holster before carrying.
Can I install a red dot without a mounting plate?
The slide is pre-milled for the SIG Romeo1Pro and also accepts the Trijicon RMR footprint with the included adapter plate. You will need to purchase the optic separately.
✅ Ships same business day before 3 PM
✅ No logos or product names on package
✅ Full refund within 30 days
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