SIG Sauer P320 X-Series PRO Full-Size 9mm Pistol – optics-ready slide, XRAY3 night sights, 17+1 capacity, LE Agency Vault
This P320 X-Series PRO comes straight from SIG Sauer’s Law-Enforcement Agency Vault allocation, making civilian examples hard to find. Built on SIG’s modular P320 platform, it features a removable stainless fire-control unit, an optics-ready PRO-cut slide, and the competition-favored flat-faced X-Series trigger. With XRAY3 tritium sights, a 4.7-inch stainless barrel, and three 17-round magazines, it delivers a duty-ready package in as-new condition.
Condition
Overall Condition: As-new condition with no signs of prior handling beyond what’s typical from inspection.
Specific Condition Notes: Appears rarely used aside from factory test firing.
Bore Condition: Excellent – clean, mirror finish, no signs of wear.
Rifling Condition: Excellent – sharp lands and grooves.
What’s Included
- SIG Sauer factory hard case (gray)
- Three 17-round SIG Sauer steel magazines with polymer followers
Produced for police and government contracts, this Agency Vault P320 X-Series PRO offers law-enforcement build specs in a civilian-transferable pistol. The serialized stainless fire-control unit serves as the regulated firearm, allowing caliber or grip changes without another FFL transfer.
The PRO-cut slide ships optics-ready, accepting SIG ROMEO1Pro and Leupold DeltaPoint Pro footprints with no adapter plates required. Deep front and rear serrations give positive purchase for slide manipulations.
A flat-faced X-Series trigger shortens reach and promotes a straight-to-the-rear press favored by competition shooters. Inside, the 4.7-inch stainless barrel pairs with SIG’s Nitron-finished stainless slide for corrosion resistance and longevity.
The X-Full polymer grip module provides an extended beavertail, a high undercut, and aggressive molded stippling for control under recoil. XRAY3 day/night sights combine a high-visibility green front ring with tritium vials for 24-hour sight picture.
Chambered in 9mm Luger with a 17+1 capacity, this striker-fired pistol shares ancestry with the U.S. Army’s M17/M18 sidearm, giving buyers a proven platform enhanced by SIG’s PRO features.