SIG Sauer P365X 9mm Luger Micro XSeries, Optics-Ready, X-RAY3 Night Sights, 3.1 in Barrel, 12+1, 2025, Refinished Two-Tone Slide
This 2025 SIG Sauer P365X is a micro-size XSeries 9mm that combines an optics-ready slide, X-RAY3 day/night steel sights, and a flat-faced trigger with a crisp 90-degree break. It includes three steel magazines and ships with the SIG factory hard case and a Kydex holster. Note: The slide has a non-factory, light gray/two-tone refinish and is not the original black Nitron finish for this SKU.
The slide uses the RMSc/SIG-LOC footprint and arrives with the cover plate installed. The XSeries grip module adds an extended beavertail and an undercut trigger guard, while the serialized stainless-steel FCU and stainless barrel underscore its durable build. Made in the USA and configured for 12+1 capacity, this example is set up with both 10-round and 12-round magazines.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: The firing pin shows premature wear and will need replacement.
What’s Included
- SIG Sauer factory hard case
- Kydex holster with T1C Standard Wedge 1.0 inch installed, dual belt clips
- 1x 12-round steel magazine
- 2x 10-round steel magazines
The P365X is a striker-fired 9mm built on a polymer XSeries grip module with an extended beavertail and an undercut trigger guard for a secure, high hold. Its serialized stainless-steel FCU chassis and stainless barrel provide a robust internal foundation.
The slide features front and rear cocking serrations and an optics-ready cut with the cover plate installed, using the RMSc/SIG-LOC footprint. Factory SIG X-RAY3 day/night steel sights include a green ring tritium front and a tritium notch rear for consistent visibility.
A 3.1 in stainless barrel, integral one-slot accessory rail, and no external manual safety round out the carry-focused configuration. The slide is marked X and P365, and the barrel hood is marked SIG SAUER and 9mm x 19.
Capacity is set at 12+1, and this pistol arrives with one 12-round and two 10-round magazines to suit varying carry or range needs. Manufacturer part number is 365X-9-BXR3P-10. This part number corresponds to the standard black Nitron P365X; the pistol offered here has a non-factory light gray/two-tone slide refinish.

