SIG Sauer P320 Carry Pro X-Series 9mm, 3.9-Inch Carbon Steel Barrel, LE Agency Vault Model, 17+1
This P320 Carry Pro X-Series comes straight from SIG Sauer’s restricted Law Enforcement “Agency Vault” allocation, making civilian examples uncommon. Built on the modular, serialized Fire Control Unit, it blends the controllability of a full-size XCarry grip with the concealability of a 3.9-inch compact slide. Factory Pro-Cut serrations, an optic-cut Nitron slide, and X-RAY3 day/night sights round out a duty-ready package that ships with three 17-round magazines.
Condition
Overall Condition: As-new condition with no signs of prior handling beyond what’s typical from inspection (see photos).
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
This pistol appears to have been fired only for the factory test and then stored.
What’s Included
- SIG Sauer factory hard case (gray, lockable)
- 3 × 17-round steel SIG Sauer magazines
- Orange plastic chamber safety flag
The Carry Pro configuration mates a compact slide to a full-size X-Series grip module, giving you 17-round capacity without the extra slide length of a traditional duty pistol. The flat-faced X-Series trigger offers a straight press and consistent break, characteristic of the P320 striker-fired system.
The carbon steel slide wears SIG’s durable matte black Nitron finish and features factory Pro-Cut windows plus forward and rear serrations for positive manipulation. An optic cut allows direct mounting of compatible micro red dots while retaining the suppressor-height X-RAY3 tritium sights for clear day or night sighting.
Inside, the serialized stainless-steel Fire Control Unit forms the heart of the P320’s renowned modularity, allowing caliber or size conversions without paperwork on the grip module. The glass-filled polymer X-Series grip includes an undercut trigger guard, aggressive texture, and an accessory rail for lights or lasers.
Because this pistol was produced for police and government contracts, civilian access is usually limited to secondary channels, adding collectibility to its practical performance. All components remain in factory-fresh condition, ready for range work or concealed carry.




