SIG Sauer P365 XL 9mm, 3.7 in Barrel, Nitron Slide, Flat Trigger, ROMEOZero Red Dot, 2x15rd + 12rd Mags
This SIG Sauer P365 XL stands out with a SIG ROMEOZero micro red dot installed on the optics-cut slide, a flat-faced trigger with a defined 90-degree break, and a Nitron-finished slide with front and rear serrations. It includes two 15-round magazines and one 12-round magazine, and comes in the SIG factory hard case labeled with MPN 365XL-9-BXR3. The bore is clean and bright, supporting the pistol’s ready-to-shoot condition.
The P365 XL configuration pairs a 3.7 in barrel with the XSeries-style grip module for a longer sight radius and a secure hold. The slide is marked “XL” and “P365,” and the barrel hood is stamped “SIG SAUER” and “9mm x 19.” The frame is molded “NEWINGTON, NH, USA,” matching the country of origin. The case label shows SKU 365XL-9-BXR3 with a date of 28-OCT-2019.
The optics-cut slide accepts the SIG ROMEOZero or other Shield RMSc pattern micro dots, and this example includes the ROMEOZero already installed with a red reticle. A green-outline tritium front sight (TG-H3) complements the dot, with an approximate 5.6 in sight radius. A single-slot dust-cover accessory rail is integrated on the frame.
This striker-fired XL variant features a flat-faced trigger designed for a crisp, 90-degree break. Chambered in 9mm Luger, it is supplied with two 15-round magazines and one 12-round magazine, giving flexibility in capacity and grip length. The Nitron slide finish and practical serrations support confident manipulation and carry.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Light handling marks from previous use are present.
What’s Included
- SIG Sauer ROMEOZero micro red-dot sight (installed)
- SIG Sauer factory hard case with 365XL-9-BXR3 label
- Two 15-round steel magazines (Made in USA)
- One 12-round magazine
The P365 XL’s configuration delivers a balanced 3.7 in barrel, an extended grip profile, and a factory optics-ready slide. The installed ROMEOZero keeps the sight picture fast and uncluttered, while the tritium front sight provides a clear reference in low light. Front and rear cocking serrations and the Nitron finish add functional durability and control.
The slide is precision cut to accept the ROMEOZero/Shield RMSc footprint, and markings are crisp throughout, including “XL” and “P365” on the slide and the caliber and maker on the barrel hood. The polymer frame with XSeries-style grip module is molded with “NEWINGTON, NH, USA.”
The magazine set includes two 15-round and one 12-round options, and the pistol’s rated capacity is 15+1. A single-slot accessory rail on the dust cover allows addition of compatible compact lights or similar accessories if desired.
Factory identifiers include the mfg part number 365XL-9-BXR3, and the case label shows a date of 28-OCT-2019. Overall, this is a clean, ready-to-use P365 XL package with a quality micro red dot and flexible magazine configuration.