SIG Sauer P365 XL XSeries 9mm with ROMEOZero Red Dot, 3.7-inch Barrel, 15+1 Capacity, Nitron Slide
This SIG Sauer P365 XL XSeries pairs the micro-size 9mm platform with a factory-installed SIG Sauer ROMEOZero micro red dot for fast sighting in a compact package. It features a 3.7-inch barrel, a flat-faced trigger with a 90-degree break, and the XSeries grip module with an extended beavertail. The Nitron-finished slide is cut for direct-mount RMSc-pattern optics and retains a high-visibility green-ring front night sight.
Built around a stainless-steel fire control unit inside a polymer grip module, this P365 XL includes front and rear cocking serrations, a SIG-style single-slot accessory rail, and clear XL model markings on the slide. It ships with one 15-round steel magazine with an extended baseplate and comes in the SIG Sauer factory hard case.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are minor, superficial scratches and blemishes on exterior surfaces. There is pitting on the exterior of the barrel.
What’s Included
- SIG Sauer factory hard case with foam
- SIG Sauer ROMEOZero micro red dot (RMSc footprint; secured by two top screws)
- 1x 15-round P365 steel magazine with extended baseplate
The XSeries configuration adds a flat-faced trigger with a 90-degree break for a consistent press and reset, plus an XSeries grip module with an extended beavertail for control. The micro-size frame keeps the footprint compact while providing a full-length XL slide and 3.7-inch barrel.
The slide is direct-mount RMSc-pattern and is fitted with a SIG Sauer ROMEOZero micro red dot. A green-ring front night sight remains in place, while the rear sight has been removed to accommodate the optic.
Construction details include a Nitron-finished slide with front and rear cocking serrations, a stainless-steel fire control unit housed in a polymer grip module, and a black overall finish. The slide is marked "P365" with a stylized "XL," and the frame is marked "NEWINGTON, NH USA."
Capacity is 15+1 with the included steel magazine and extended baseplate. A SIG-style single-slot accessory rail on the dust cover supports compatible lights or accessories.