SIG Sauer P320-XTEN XSeries 10mm, 5 in Bull Barrel, Optics-Ready, XRAY3 Sights, Nitron, 15+1, 2 Mags
This full-size P320-XTEN XSeries pairs 10mm power with a 5 in bull barrel, an optics-ready Nitron slide, and XRAY3 Day/Night sights. It features the dedicated 10mm/.45 XSeries grip module, a flat-faced trigger with a 90-degree break, and ships with two 15-round factory magazines.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Shows minimal handling marks visible under close inspection. See photos for a closer look at surfaces and included items.
What’s Included
- SIG Sauer factory hard case
- Two 15-round factory steel magazines
The P320-XTEN XSeries is a striker-fired, full-size 10mm built around a 5 in bull barrel for added mass at the muzzle and stable recoil control. Capacity is 15+1, and weight with an empty magazine is 33 oz, offering a solid balance for the caliber.
Its Nitron-finished slide includes forward and rear serrations, an optics-ready cut with a removable rear-sight cover plate, and compatibility with SIG ROMEO1PRO/ROMEO2 and Leupold DeltaPoint Pro footprints (Trijicon RMR requires an adapter plate). The sight radius measures 6.8 in for clear alignment.
Factory XRAY3 Day/Night sights come installed: a green-dot tritium front blade marked TG-H3 and a black square-notch rear. These provide a crisp daytime sight picture with tritium visibility in low light.
The dedicated 10mm/.45 XSeries polymer grip module adds a deeper undercut and extended beavertail for firm purchase. An integral multi-slot accessory rail on the dustcover supports common white lights or lasers. The flat-faced trigger is tuned for a straight, 90-degree break.
Overall dimensions are 8.5 in long, 5.6 in tall, and 1.3 in wide. This USA-made configuration carries the XSeries feature set and the P320 modular foundation, identified by MPN 320X5-10-BXR3-R2.