Description
The Real P320-XTEN COMP is a factory-compensated slide assembly designed to reduce muzzle rise and improve follow-up shot speed for the SIG P320-XTEN platform. It’s built for the 10mm shooter who demands performance and reliability from their duty or woods-carry pistol. This is a genuine SIG Sauer factory part, not an aftermarket clone. We added this to our catalog in fall 2025, and it’s proven to be a reliable seller with consistently positive feedback from customers who use it as intended.
Why This One?
- Genuine SIG Factory Part: Engineered and manufactured by SIG Sauer for guaranteed fit, function, and finish with your P320-XTEN.
- Integrated Compensator: The slide’s built-in compensator ports gas upward to counteract muzzle flip, helping you stay on target.
- Maintains Reliability: Designed as a complete system with your factory barrel and recoil spring, it runs without needing to tune with specific ammunition.
- Direct Replacement: Swaps directly with your stock P320-XTEN slide assembly. No gunsmithing required for installation.
- RMR/SRO Footprint: The slide is cut from the factory for a direct mount of popular micro red dot optics.
Full Spec Sheet
| Manufacturer | SIG Sauer |
| Model | P320-XTEN COMP Slide Assembly |
| Caliber | 10mm Auto |
| Optic Cut | Yes, SIG RMR/SRO footprint |
| Finish | Black Nitron |
| Weight (measured) | 4.8 oz |
| Compatibility | SIG P320-XTEN series (requires factory FCU/frame) |
| Condition | New, Factory Original |
Q & A
Will this work on my P320 in 9mm or .45 ACP?
No. The P320-XTEN COMP slide is chambered specifically for 10mm Auto and is designed for the larger P320-XTEN series frames and fire control units. It is not compatible with 9mm or .45 ACP P320 variants.
Does it come with a barrel and recoil spring?
No. This is the slide assembly only. You will use your existing P320-XTEN factory barrel and recoil spring assembly. This ensures proper headspace and reliable function.
I have an aftermarket polymer frame. Will this slide fit?
Fit is not guaranteed on non-OEM frames. We had one customer return a unit citing it was “too tight,” which was traced directly to an aftermarket frame. For guaranteed performance, use a SIG Sauer factory P320-XTEN grip module.
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