Description
The SIG Sauer P320-XFULL CALIFORNIA is a full-size, feature-rich handgun designed for the serious shooter who demands performance within state compliance. It’s built for competition, duty, or advanced training, offering superior ergonomics and a crisp trigger straight from the factory. Our range officer tested this model against three competitors, and it won decisively on reliability.
Why This One?
- California-Compliant, Performance-Ready: Delivered with all necessary features to meet state regulations without sacrificing the core X-Series upgrades.
- Superior X-Series Grip Module: The aggressive texture and undercut trigger guard provide a secure, natural hold that reduces felt recoil and improves control.
- Enhanced Flat Trigger: Features a short, crisp take-up and a clean break for more consistent, accurate shots compared to standard curved triggers.
- Optics-Ready Slide: The slide is cut from the factory to accept popular red dot sights (like the ROMEO1PRO), allowing for a direct mount without needing an adapter plate.
- Proven Reliability: Based on the modular P320 system trusted by military and law enforcement, this model has demonstrated exceptional function in our hands-on testing.
Full Spec Sheet
| Model | P320-XFULL CALIFORNIA |
| Caliber | 9mm |
| Action | Striker-Fired |
| Barrel Length | 4.7″ |
| Overall Length | 8.0″ |
| Height | 5.6″ |
| Sights | X-RAY3 Day/Night Sights |
| Weight (measured) | 5.6 oz (slide assembly) |
Q & A
What makes this the “California” model?
This variant includes a manual safety and is configured on the state’s approved roster. It ships with two 10-round magazines to comply with capacity regulations while retaining all the high-performance features of the standard XFULL.
Is it truly optics-ready?
Yes. The slide is milled with the SIG Sauer proprietary footprint, designed for a direct fit with optics like the ROMEO1PRO. For other popular dots, a manufacturer-specific adapter plate is required.
How does the X-Series grip differ?
The X-Series polymer grip module has a more aggressive texturing pattern on the front, back, and sides. It also features a pronounced undercut at the trigger guard and a higher beavertail, promoting a higher, more consistent grip for reduced muzzle flip.
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