SIG Sauer P365X ROMEOZero ELITE (RXZE) 9mm Micro-Compact, 3.1 in Barrel, 12+1
This factory P365X ROMEOZero ELITE (RXZE) pairs a micro-compact 3.1 in slide with the XSeries-length grip and comes equipped with SIG's ROMEOZero ELITE micro red dot and steel shroud installed. It features a flat-faced trigger with a 90-degree break, XRAY3 Day/Night front sight with a backup rear notch, and a polymer frame marked Newington, NH, USA. The sale includes the Romeo Zero Elite Red Dot, a 12-round magazine, a SIG hard case, a Kydex IWB holster, and accessories listed below.
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: Some markings from previous handling/use. Bore is bright and clean. Refer to pictures.
What’s Included
- SIG Sauer factory hard case
- Owner's manual
- 1x 12-round magazine
- SIG Sauer ROMEOZero ELITE micro red dot (installed)
- ROMEOZero ELITE steel shroud (installed)
- CR1632 battery
- Kydex IWB holster with dual clips and concealment claw
The RXZE configuration comes from the factory with the ROMEOZero ELITE 1x micro red dot mounted and protected by the included steel shroud. The optic provides a bright aiming point while preserving the pistol's micro-compact profile.
The P365X architecture combines a 3.1 in micro slide with an XSeries-length grip for a 12+1 capacity in a small footprint. The flat-faced XSeries trigger delivers a 90-degree break, and the slide includes front and rear serrations along with a dedicated micro-optic cut.
Sight configuration is straightforward and practical: an XRAY3 Day/Night front sight with green ring pairs with a backup rear notch for use with the installed optic. This gives a consistent sighting reference even with the optic installed.
The polymer frame incorporates SIG's proprietary single-slot accessory rail, left-side slide catch and takedown lever, and no external manual thumb safety. It uses the modular P365 fire control unit (FCU) architecture and is marked Newington, NH, USA.




