SIG Sauer P320-XTEN 10mm Full-Size, 5-inch, Optic-Ready X-Series, Nitron Slide, 15+1, 2 Magazines
This full-size P320-XTEN pairs a 5-inch stainless bull barrel with an optic-ready X-Series slide to deliver a robust 10mm setup in a modular P320 platform. It features the X-Series flat trigger, a reversible magazine release, aggressive-textured grip module, and a full-length M1913 rail. The TG-H3 front sight with a luminous green dot pairs with a square-notch rear sight, and the slide includes a removable optics cover plate. It ships with two 15-round magazines and a SIG SAUER factory hard case with a model label dated 02-Jan-2024.
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: The pistol presents in overall great shape with minor, superficial scratches, blemishes, and small scuffs from prior handling.
What's Included
- SIG SAUER factory hard case with model label
- Two 15-round steel magazines (10mm Auto)
The P320-XTEN is built on SIG's modular, removable serialized chassis (FCU), giving this 10mm variant the flexibility of the P320 architecture while retaining XTEN-specific component compatibility. The XTEN uses 10mm/.45 ACP-sized components and is not compatible with 9mm, .357 SIG, or .40 S&W parts.
Its X-Series slide comes finished in black Nitron and includes an optic-ready cut with a removable cover plate, compatible with SIG ROMEO2 and Trijicon RMR footprints. Deep front and rear serrations aid slide manipulation. The square-notch rear sight is mounted to the optics cover plate, pairing with the TG-H3 front sight's luminous green dot.
The 5-inch stainless steel bull barrel and striker-fired action are matched to the X-Series flat-faced trigger for a consistent pull. A reversible magazine release supports user preference. Capacity is 15+1 with the included magazines.
The X-Series grip module incorporates an extended beavertail, a deep trigger undercut, and aggressive texturing for secure control. A full-length M1913 accessory rail provides mounting space for compatible lights or accessories. This pistol is made in the United States, and the included case label lists SKU 320X5-10-BXR3-R2 with a printed date of 02-Jan-2024.




