SIG Sauer P320 PRO X-Series 9mm Full-Size Striker-Fired Pistol | 4.7-Inch Barrel, X-Ray3 Night Sights, Optics-Ready Slide, 17+1 Capacity
Built in SIG Sauer’s restricted-access Agency Vault for law-enforcement contracts, this P320 Professional X-Series brings duty-grade features to the civilian market through aftermarket channels. The full-size 9 mm pistol pairs a carbon-steel 4.7-inch barrel with an optics-ready Nitron slide, a modular flat-faced trigger, and the proven P320 Fire Control Unit that accepts caliber and size conversions.
Condition
Overall Condition: As-new condition with no signs of prior handling beyond what’s typical from inspection.
Specific Condition Notes: The pistol appears to have been fired only for factory function testing.
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
- (3) 17-round SIG Sauer steel magazines with orange followers
- SIG Sauer polymer magazine loader
The PRO X-Series slide features deep front and rear serrations plus a factory-milled optic cut protected by a cover plate, giving the shooter immediate red-dot compatibility without gunsmithing.
SIG’s X-Series grip module offers an extended beavertail, high undercut trigger guard, and aggressive molded texture for control during rapid strings. An ambidextrous magazine release supports left- or right-handed operation.
The flat, single-stage trigger breaks at roughly 6 pounds for a consistent, duty-appropriate pull. Inside, the stainless-steel FCU can be removed and installed in alternate P320 grip modules, enabling caliber or size changes in minutes.
Three 17-round magazines supply 51 rounds on hand, while SIG’s X-Ray3 tritium sights—green-ring front and serrated square-notch rear—deliver clear day-night targeting.