Sig Sauer P320-XTEN 10mm Full-Size XSeries, 5 in Bull Barrel, 15+1, Tritium Front, 2 Mags
This full-size P320-XTEN is a 10mm XSeries variant built around SIG Sauer's modular P320 system with a removable stainless-steel FCU. It combines a 5-inch bull barrel, a stainless slide with Nitron finish, and an XSeries grip module featuring an extended beavertail, deep trigger undercut, and aggressive texturing. Capacity is 15+1, and the case label is dated February 14, 2024.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Light handling marks from prior use are present. Please refer to the photos for details.
What's Included
- SIG Sauer factory hard case (gray)
- Two 15-round SIG Sauer factory steel magazines
The 5-inch bull barrel is paired with a striker-fired action and a flat-faced trigger. This setup offers a consistent, straight-back trigger press and strong barrel support for the 10mm chambering.
Sight configuration includes a green tritium front dot marked "TG-H3" and a dovetailed square-notch rear, providing a durable, low-profile setup with a bright front reference.
The stainless-steel slide wears a Nitron finish and uses an external extractor. The black polymer XSeries grip module adds an extended beavertail, a deep undercut at the trigger guard, and aggressive texturing for a secure hold.
An integral accessory rail with multiple slots is molded into the frame for mounting lights or other rail-compatible equipment. The modular stainless-steel fire control unit is removable, supporting the P320 system's interchangeability.
Markings include "XTEN" and "P320" on the slide, "10mm AUTO SIG SAUER" on the barrel hood, and "NEWINGTON, NH, USA" molded into the frame. This pistol is made in the United States and is identified by SIG Sauer part number 320X5-10-BXR3-R2.