SIG Sauer P320 XCompact XSeries 9mm Optics-Ready Striker-Fired Pistol – 15+1 Capacity, XRAY3 Day/Night Sights, 3.6" Barrel
The P320 XCompact XSeries blends SIG Sauer’s modular fire-control unit with a compact, carry-friendly frame and an optics-ready slide. This example is in excellent condition, outfitted with factory XRAY3 day/night sights and the R2 slide cut that accepts popular micro-red-dot footprints. A flat-faced XSeries trigger, extended beavertail, and internal mag-well flare round out a package built for fast, confident shooting.
Condition
Overall Condition: Excellent – shows only faint signs of prior handling.
Bore Condition: Excellent – clean, mirror finish with sharp lands and grooves.
Specific Condition Notes: The pistol displays minimal evidence of use, and all mechanical functions operate correctly.
What’s Included
- SIG Sauer factory hard case (grey polymer)
- (2) 15-round SIG Sauer steel magazines with orange followers
- SIG P320 operator's manual
The serialized stainless-steel fire-control unit is the heart of the P320 system, allowing the owner to swap slides, barrels, or grip modules without additional paperwork. This XCompact configuration delivers a 15-round capacity in a footprint similar to a Glock 19 while keeping the weight low with a polymer grip module.
The black Nitron-finished stainless slide features deep front and rear serrations for secure manipulation and comes cut for SIG’s R2 optic interface, accommodating the Romeo1 Pro and Leupold DeltaPoint Pro without plates. XRAY3 tritium sights offer a bright green front ring for daylight visibility and three tritium vials for low-light work.
The XSeries flat trigger provides a straight 90-degree break, promoting consistent finger placement and a crisp release. A reversible magazine catch supports left- or right-handed shooters, while the 3-point takedown system allows field stripping without pulling the trigger.
An extended beavertail and subtle internal mag-well flare enhance control during recoil and speed reloads. The 3.6-inch stainless barrel pairs compact carry dimensions with full-size ballistic performance, making this pistol equally at home on the range, in competition, or as an everyday defensive sidearm.



