SIG Sauer P365-XMACRO Agency VAULT 9mm, 3.7" Nitron Barrel, 17+1, ROMEO-X Optic
This P365-XMACRO comes from SIG Sauer’s limited Agency VAULT law-enforcement allocation, making it one of the few surplus units released to the civilian market. It packs a full 17-round capacity into the slim P365 frame, ships with a factory-installed ROMEO-X red-dot sight, and retains the modular fire-control unit that accepts the entire P365 ecosystem.
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 – sharp lands and grooves.
This pistol appears to have been fired only for factory testing.
What’s Included
- SIG Sauer factory gray hard plastic pistol case
- SIG Sauer ROMEO-X compact red-dot sight (factory installed)
- Three 17-round SIG Sauer steel magazines
- Two spare interchangeable grip backstraps for P365 XMACRO
- Factory operator manuals for P365 pistol and ROMEO-X optic
The Agency VAULT designation indicates production for police and government contracts, with surplus units like this offered to civilians only through aftermarket channels. Each pistol is identical to duty-issued guns, delivering a proven service pedigree.
The 3.7-inch carbon-steel barrel is finished in Nitron for corrosion resistance and non-reflective concealability. This non-ported variant, new for 2024, increases velocity and cuts muzzle blast compared with ported versions.
A stainless-steel slide, also Nitron-coated, features aggressive front and rear serrations and is optic-ready from the factory. The mounted ROMEO-X red-dot aligns with SIG’s XRAY3 tritium front sight for an instantly visible co-witness.
The polymer grip module keeps the slim profile of the P365 while extending to house 17-round steel magazines. A full-length five-slot MIL-STD-1913 rail allows lights or lasers without aftermarket adapters.
Inside, a striker-fired action pairs with a flat-faced trigger offering a 5.5-lb break and short reset, giving a consistent, controllable pull shot after shot.