Sig Sauer P365-XMACRO COMP 9mm with ROMEO-X Compact Red Dot, 3.1" Integrally Compensated Barrel, 17+1 Capacity
This P365-XMACRO COMP stands out with its integrally compensated slide, 3.1" barrel, and XMACRO-length grip that feeds standard 17-round magazines. It comes factory-equipped with a SIG Sauer ROMEO-X Compact red dot that co-witnesses with the XRAY3 day/night front sight. Reported as prior law-enforcement issue surplus, this as-new example is now available to the civilian market and includes three 17-round magazines, interchangeable backstraps, and the SIG factory case.
Condition
Overall Condition: As-new condition with no signs of prior handling beyond what’s typical from inspection (see photos).
Specific Condition Notes: This pistol appears unused beyond the factory test and light handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
What’s Included
- SIG Sauer ROMEO-X Compact red dot sight (installed)
- Three 17-round SIG Sauer factory steel magazines for the P365 XMACRO pattern
- Interchangeable grip backstraps
- Factory manuals and ROMEO-X documentation
- SIG Sauer gray factory hard case
The COMP configuration uses an integrally compensated stainless steel slide with dual top ports and a Nitron finish. Front and rear serrations support confident manipulation, and the X-Series flat-faced trigger complements the striker-fired, semi-automatic action.
The XMACRO-length grip module features an extended beavertail, undercut trigger guard, and aggressive texture. A full-length M1913 accessory rail with four slots supports common lights or accessories. Capacity is 17+1, and the included magazines have orange followers with numbered witness holes to 17.
The installed SIG Sauer ROMEO-X Compact red dot provides an optic-integrated rear notch that co-witnesses with the XRAY3 day/night green-dot front sight. The optic uses the Compact/Shield RMS-c footprint.
This pistol is reported prior law-enforcement issue surplus now made available to the civilian market. The factory label shows SKU W365XCA-9-COMP-RXX dated 14-MAY-2025. It remains in as-new condition with indications limited to factory testing and inspection handling.
Additional design notes include the modular P365 FCU ecosystem compatibility, carbon steel 3.1" barrel with integral compensation, and construction in the United States.