SIG Sauer P320 X-Series Pro 9mm 4.7" Striker-Fired Pistol – Law Enforcement Agency Vault Release
This full-size P320 X-Series Pro comes straight from SIG Sauer’s Law Enforcement allocation, built in the Agency Vault for police and government contracts and rarely offered on the civilian market. It features the P320’s modular serialized fire-control unit, an X-Series grip module with expanded beavertail and aggressive texturing, and factory-upgraded XRAY3 day/night sights and flat trigger—all packed into an as-new package.
Condition
Overall Condition: As-new condition with no signs of prior handling beyond what’s typical from inspection (see photos).
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This pistol appears unused beyond the factory test fire.
What’s Included
- SIG Sauer factory gray hinged hard case
- Three 17-round SIG Sauer steel magazines with orange followers
- Orange plastic chamber flag
The X-Series Pro was engineered for duty use, pairing a stainless slide finished in matte black Nitron with a 4.7" stainless barrel that ends in a flush muzzle crown for added protection.
The modular fire-control unit is the serialized component, allowing caliber and frame changes without a new FFL transfer—an uncommon level of flexibility in a duty pistol.
SIG’s flat-faced trigger breaks cleanly and shortens the reach, while deep front and rear slide serrations ensure confident manipulation under gloves or adverse conditions.
Factory SIG XRAY3 tritium sights deliver a bright green front ring and 3-dot night capability, giving 24-hour visibility without aftermarket upgrades.
As an Agency Vault release, this Pro-grade P320 combines hard-use readiness with collector appeal, shipping with three 17-round magazines and its original hard case.