SIG Sauer P320-XTEN 10mm X-Series Full-Size, 5" Bull Barrel, Night Sights, Optics-Ready R2, 15+1 Capacity
This SIG Sauer P320-XTEN stands out as a full-size, X-Series 10mm built around a 5" bull barrel, a stainless-steel slide with Nitron finish, and an optics-cut R2 footprint. It includes two 15-round factory magazines, night sights, and the P320 modular FCU architecture, delivering a feature-rich 10mm package in great overall condition.
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: Minor scuffs and small areas of finish wear are present from prior handling; overall presentation is clean.
What’s Included
- 2x 15-round factory SIG Sauer steel magazines
- OWB Kydex holster with topographic pattern and dual belt loops
- SIG Sauer factory hard case with matching label
The 5" bull barrel adds mass at the muzzle to aid control with full-power 10mm loads. The slide is stainless steel with a Nitron finish and features front and rear cocking serrations for positive manipulation.
The R2 optics-cut slide is compatible with SIG ROMEO2 and Trijicon RMR footprints, allowing direct mounting of supported optics. Night sights are installed.
The full-size X-Series grip module is sized for the 10mm/.45 frame, offering an extended beavertail, a deep undercut trigger guard, and aggressive texturing. A true M1913 Picatinny dustcover rail is integrated for mounting lights or accessories.
Built on the modular P320 fire control unit, this striker-fired XTEN includes a flat-faced trigger and a 15+1 capacity in 10mm Auto. Observed factory markings include "XTEN" and "P320" on the slide, "10mm AUTO SIG SAUER" on the barrel hood, and "NEWINGTON, NH, USA" on the frame. Mfg part number is 320X5-10-BXR3-R2.