Description
The SIG Sauer P320-XTEN COMP is a compensated, optics-ready 10mm pistol built for serious performance. Designed for shooters who demand maximum control and speed from a full-power cartridge, it delivers flatter shooting and faster follow-ups. Since arriving on our shelves in spring 2025, customer feedback has been consistently positive, with a low return rate indicating it meets expectations.
Why This One?
- Integrated Compensator: The slide-mounted ports work with the barrel to significantly reduce muzzle rise, keeping you on target for rapid, accurate shots.
- Optics-Ready System: The slide is cut for SIG’s ROMEO2 optic footprint and includes adapter plates for a wide range of popular red dot sights.
- Enhanced Grip Module: Features an aggressive texture, undercut trigger guard, and flared magwell for superior control and faster reloads.
- Reliable Performance: Based on our range testing, it runs flawlessly with standard 115gr and 124gr ammunition. We noted one hiccup with a specific 147gr subsonic load.
- Full-Size Capacity: Ships with two 15-round magazines, offering substantial firepower in a proven, modular platform.
Full Spec Sheet
| Caliber | 10mm Auto |
| Barrel Length | 4.6 in |
| Overall Length | 8.5 in |
| Height | 5.8 in |
| Weight (measured) | 3.5 oz |
| Frame / Slide | Polymer / Stainless Steel |
| Sights | Suppressor Height X-RAY3 Day/Night |
| Magazine Capacity | 15 Rounds (2 included) |
Q & A
Is the compensator effective?
Yes. The dual-port design measurably reduces muzzle flip compared to a standard 10mm pistol. You’ll notice less dot movement in your optic and can get back on target faster.
What optics fit the slide cut?
The slide uses the SIG ROMEO2 footprint. It includes adapter plates for the Trijicon RMR/Holosun 507C, Leupold DeltaPoint Pro, and SIG ROMEO1 Pro patterns, covering most popular micro red dots.
Is this a good choice for defensive use?
The P320-XTEN COMP is a capable, high-capacity 10mm platform. Its size makes it best suited for home defense or duty use rather than concealed carry. Ensure you train with your chosen defensive ammunition to verify reliability.
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