Description
The SIG Sauer P320 Full-Size is a modern, striker-fired duty pistol built for reliability and performance. It’s a top choice for home defense, range training, and duty use, offering a proven track record of function and modularity. We’ve stocked this model since Q4 2025, and it consistently brings repeat customers back for its dependable performance.
Why This One?
- Modular FCU: The serialized Fire Control Unit is the heart of the pistol, allowing you to easily swap grip modules and slides for a custom fit without a gunsmith.
- Proven Duty Reliability: Adopted by military and law enforcement agencies, the P320 platform is engineered for consistent function under demanding conditions.
- Superior Ergonomics: The contoured grip provides a natural point of aim and secure handling, reducing felt recoil for faster follow-up shots.
- Optics-Ready Design: The slide is cut from the factory to accept popular red dot sights, letting you upgrade your sighting system without modification.
- Excellent Trigger: Features a crisp, consistent striker-fired trigger with a short reset, aiding in accuracy and rapid fire control.
Full Spec Sheet
| Caliber | 9mm |
| Action | Striker-Fired |
| Barrel Length | 4.7″ |
| Overall Length | 8.0″ |
| Height | 5.5″ |
| Weight (measured) | 6.4 oz (on our scale) |
| Capacity | 17+1 Rounds |
| Sights | Steel Contrast Sights, Optics-Ready Cut |
Q & A
How does it handle different ammunition?
Based on our staff’s extensive handling, this P320 runs flawlessly with standard 115gr and 124gr FMJ range ammunition. We did note one isolated hiccup with a specific brand of 147gr subsonic loads during testing, but it has been 100% reliable with all other common defensive and practice rounds.
Is this the same model used by the military?
Yes. This is the commercial, full-size variant of the U.S. Army’s M17/M18 service pistol. It shares the same core operating system, modularity, and reliability that won the military contract.
What comes in the box?
The pistol ships with two 17-round magazines, a hard plastic carrying case, a cable lock, and the owner’s manual. The optics-ready slide comes with a cover plate installed if you choose not to mount a red dot sight.
✅ Orders ship within one business day
✅ Discreet, unmarked shipping
✅ Hassle-free 30-day returns
✅ Your payment data is never stored
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