SIG Sauer P365 XL 9mm - 3.7 in Barrel, Tritium Night Sights, Optics-Ready RMSc Footprint, 12+1 Capacity, Nitron Slide
The SIG Sauer P365 XL pairs a 3.7 inch barrel and 12+1 capacity with an optics-ready slide and tritium night sights, creating a compact, carry-oriented 9mm that is ready for modern sighting options. This XL variant features a flat-faced trigger, extended beavertail grip module, and a Nitron-finished slide with forward and rear serrations. It uses SIG's modular stainless steel FCU and is marked NEWINGTON, NH USA.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This pistol was very well maintained. There is a small surface scratch on the polymer frame.
What’s Included
- Range Maxx case
- 1x 12-round steel magazine (marked "MADE IN USA")
The XL-size P365 configuration brings a longer 3.7 inch barrel and increased 12+1 capacity, along with a flat-faced trigger and striker-fired action. The extended beavertail grip module and textured polymer surfaces support a secure, consistent hold, and the modular stainless steel FCU allows the removable grip module architecture the P365 line is known for.
The black Nitron slide features both forward and rear serrations and is marked P365 with the stylized X. It is optics-ready with an integral cut that uses the RMSc/ROMEOZero footprint, and the rear sight sits on a removable plate to accommodate direct mounting.
Factory 3-dot tritium night sights include a green-ring tritium front post and a two-dot tritium rear on the removable plate, providing a clear, day/night sight picture. The sight radius is approximately 5.6 inches.
Built on a stainless steel receiver with a polymer grip module, this P365 XL uses a short-recoil, locked-breech operating system. The dust cover includes a one-slot SIG-type accessory rail, and the pistol has no external manual safety. Frame markings read NEWINGTON, NH USA, confirming U.S. manufacture.