SIG Sauer P365XL XSeries ROMEOZero RXZ 9mm, 3.7 in Barrel, Nitron Slide, Installed ROMEOZero Red Dot, 15+1 Capacity
This factory ROMEOZero RXZ variant of the P365XL pairs SIG Sauer's XL-size micro-compact 9mm with an installed ROMEOZero micro red dot and the XSeries flat-faced trigger. It features a stainless slide with Nitron finish, a 3.7 in carbon steel barrel, and ships with three magazines plus the original SIG grey clamshell case bearing factory SKU 365XL-9-BXR3-RXZ dated April 22, 2021. Made in the United States, it offers a 15+1 capacity with the included 15-round magazine.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Light markings from previous handling and some signs of use are present. Please refer to the photos for a close look.
What’s Included
- SIG Sauer grey clamshell hard case with factory label (365XL-9-BXR3-RXZ)
- SIG Sauer ROMEOZero micro red dot sight (installed)
- Owner's Manual
- 1x 15-round and 2x 12-round SIG Sauer P365-series steel magazines; one magazine is extended with a grip sleeve
The ROMEOZero RXZ configuration delivers a mounted SIG Sauer ROMEOZero red dot on the P365XL's RMSc/ROMEOZero footprint. The rear sight notch is integrated into the optic, and the front sight is a green-ring tritium blade marked TG-H3 for a clear aiming reference.
The stainless steel slide wears SIG's Nitron finish and includes an optics cut plus front and rear serrations for confident manipulation. A 3.7 in carbon steel barrel anchors the XL-length slide, while the striker-fired action keeps the profile slim for everyday carry.
The XSeries flat-faced trigger provides a straight, consistent pull. The polymer frame includes a single-slot SIG accessory rail for lights or other compatible add-ons, and the XL size offers added sight radius within a micro-compact footprint.
This pistol supports a 15+1 capacity with the included 15-round magazine and also comes with two 12-round magazines. The factory case label confirms SKU 365XL-9-BXR3-RXZ and notes manufacture in the United States, aligning with the model's published dimensions of approximately 6.6 in L, 1.1 in W, and 5.5 in H, and a weight of about 20.7 oz with magazine.




