Description
The SIG Sauer P320-XTEN ENDURE is a purpose-built 10mm pistol designed for backcountry defense and high-stress environments. Built on the proven P320 platform, it features enhanced corrosion resistance and a robust slide for demanding use. Since we started stocking this model in fall 2025, it has consistently drawn repeat customers who appreciate its rugged reliability. This is a tool for those who need a durable, high-caliber handgun that performs when it matters most.
Why This One?
- Enhanced Corrosion Defense: The entire slide and barrel are coated with a Nitron finish, and critical internal components feature a corrosion-resistant treatment, making it ready for harsh environments.
- Optics-Ready & Sight-Compatible: The slide is cut for SIG’s ROMEO2 optic footprint and includes suppressor-height X-RAY3 Day/Night sights. Our staff has confirmed compatibility with both factory and aftermarket sights from Trijicon and AmeriGlo.
- Ruggedized Grip Module: Features an integrated magwell and aggressive texturing for a secure, consistent grip in all conditions, paired with a 4.7-inch bull barrel for 10mm performance.
- Reliable 10mm Platform: Built on the proven, modular P320 FCU (Fire Control Unit), offering the legendary reliability of the system in a potent 10mm Auto chambering.
- Balanced for Control: The design manages the 10mm’s recoil effectively, providing a shootable platform that maintains speed and accuracy for follow-up shots.
Full Spec Sheet
| Caliber | 10mm Auto |
| Barrel Length | 4.7 in |
| Overall Length | 8.5 in |
| Height | 5.6 in |
| Width | 1.4 in |
| Weight (measured) | 6.9 oz |
| Sights | X-RAY3 Day/Night (Suppressor Height) |
| Magazine Capacity | 15+1 |
Q & A
What optics fit the P320-XTEN ENDURE slide?
The slide is cut for the SIG Sauer ROMEO2 optic footprint. This footprint is also compatible with a wide range of popular optics using adapter plates from SIG or other manufacturers. It comes with a cover plate installed.
Is this compatible with other P320 grip modules?
Yes. The P320-XTEN ENDURE uses the standard P320 Fire Control Unit (FCU). It will fit into any full-size P320 XSeries grip module, but note that 10mm magazines are specific to the XTEN platform and will not function in 9mm/.357 SIG/.40 S&W grips.
What is the primary advantage of the corrosion-resistant treatment?
The treatment on internal components like the striker and springs provides an extra layer of defense against moisture and corrosive elements. This is a critical feature for a pistol designed for outdoor use where exposure to sweat, rain, or high humidity is likely.
✅ Orders ship within one business day
✅ Discreet, unmarked shipping
✅ Hassle-free 30-day returns
✅ Your payment data is never stored
Reviews
There are no reviews yet.