SIG Sauer P320 X-Series XCarry Pro “Agency Vault” 9mm — 3.9" Nitron Optic-Ready Duty Pistol, 17+1 Capacity
This P320 XCarry Pro is part of SIG Sauer’s restricted “Agency Vault” law-enforcement allocation, released to civilians only through aftermarket channels. It pairs a compact 3.9-inch carbon-steel barrel with a full-size grip module, giving you duty-grade 17-round capacity in a shorter slide. The modular, serialized stainless Fire Control Unit lets you swap calibers, slides, and grip frames without an additional FFL transfer, while the PRO-cut Nitron slide accepts SIG Romeo1 Pro, Romeo-X Pro, or Leupold DeltaPoint Pro optics directly.
Condition
Overall Condition: As-new condition with no signs of prior handling beyond what’s typical from inspection.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Rifling Condition: Excellent Rifling – Sharp lands and grooves.
Specific Condition Notes: The pistol appears to have been fired only for the factory test, showing virtually no wear on the slide, barrel hood, or controls.
What’s Included
- SIG Sauer factory gray polymer hard case
- Three 17-round SIG Sauer steel magazines with polymer baseplates
- Orange chamber safety flag
The PRO-profile slide wears SIG’s durable Nitron finish and deep forward and rear serrations for confident manipulation. Its factory optic cut sits low enough that the included XRAY3 tritium day/night sights remain co-witnessed with compatible red dots.
A flat-faced, skeletonized trigger delivers a consistent break, and the reversible magazine release supports left- or right-handed shooters. True accessory rails on the polymer grip module accept standard weapon lights and lasers.
Because the stainless FCU is the serialized component, caliber or grip conversions can be completed at home, turning this 9mm XCarry Pro into other P320 variants without another background check.
With limited direct retail availability and law-enforcement provenance, this Agency Vault P320 offers collectors and shooters an uncommon configuration that combines duty reliability, modular flexibility, and optic-ready performance right out of the box.




