SIG Sauer P320 Pro Full-Size X-Series 9mm Luger – Agency Vault Law Enforcement Allocation
This P320 Pro Full-Size X-Series comes straight from SIG Sauer’s Agency-Vault program, originally earmarked for police and government contracts and rarely released to the commercial market. Built around SIG’s modular, serialized fire-control unit, it pairs a Nitron-finished carbon-steel slide with the X-Series grip module featuring an extended beavertail, flared magwell, and flat X-Series trigger. Three 17-round steel magazines, X-Ray 3 night sights, and a four-slot M1913 rail round out a duty-ready package in as-new condition.
Condition
Overall Condition: As-new condition with no signs of prior handling beyond typical inspection.
Specific Condition Notes: The pistol appears to have been fired only during the factory function test.
Bore Condition: Excellent – clean, mirror finish, no signs of wear.
Bore Rifling: Excellent – sharp lands and grooves.
What’s Included
- SIG Sauer factory hard case (black, hinged)
- Three 17-round steel SIG Sauer magazines with orange followers
Designed for professional users, this Agency-Vault P320 Pro offers the full-size slide and 4.7-inch barrel favored by many law-enforcement agencies for balanced recoil control and sight radius.
The modular fire-control unit is the serialized component, allowing the user to swap grip modules or slides without additional transfer paperwork while maintaining the original factory trigger pull.
The X-Series grip module enhances ergonomics with a deeper undercut, extended beavertail, and flared magwell that speeds reloads. Textured panels provide a secure hold even when wearing gloves.
The Nitron black slide carries both forward and rear serrations for easy manipulation and is fitted with SIG’s X-Ray 3 night sights—a bright green front dot paired with a serrated rear notch—for fast target acquisition in varied light.
A flat-faced X-Series trigger shortens the reach and promotes a consistent, vertical press, while the reversible magazine release supports left- or right-hand operation.