SIG Sauer P320-XTEN 10mm Full-Size XSeries, 5 in Bull Barrel, Tritium Night Sights, Optics-Ready Nitron Slide, 15+1, Four 15-Round Magazines
Introduced on May 26, 2022 as the first 10mm in the modular P320 line, this full-size P320-XTEN combines a 5 in bull barrel with a 15+1 capacity and three-dot tritium night sights. It features an optics-ready Nitron slide with a cover plate installed and compatibility for ROMEO2 and RMR-pattern optics, plus SIG's removable, serialized FCU architecture. This example comes with four 15-round magazines and a SIG Sauer-branded hard case.
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: This pistol shows minimal markings from previous handling and light use. The bore is bright and clean. Please refer to the pictures for a close look at surfaces and markings.
What's Included
- Four 15-round steel double-stack magazines with witness holes
- SIG Sauer-branded hard case
The P320-XTEN leverages SIG's modular FCU system, allowing the serialized fire control unit to be removed from the grip module. This XSeries full-size configuration uses an aggressively textured polymer grip with an extended beavertail, high undercut, and a flared magwell for confident control and fast reloads. A flat-faced trigger supports a consistent, striker-fired action.
The 5 in bull barrel is paired with a Nitron-finished slide that includes front and rear serrations and an external extractor. The slide is optics-ready with a cover plate installed and is compatible with ROMEO2 and RMR-pattern footprints, offering straightforward red-dot integration when desired.
Factory three-dot tritium night sights include a green tritium TG-H3 front dot and a two-dot open-notch rear, along with a 6.8 in sight radius for a crisp sight picture in varied light. Ambidextrous slide catch/release levers and an integral multi-slot Picatinny accessory rail on the dustcover round out the duty-ready controls.
Chambered in 10mm Auto, the P320-XTEN carries 15+1 rounds in steel double-stack magazines and measures 8.5 in in overall length, 5.6 in in height, and 1.3 in in width. Weight is 33 oz with the magazine inserted. Made in the USA.