SIG Sauer P320 XFULL Pro 9mm, XSeries Full-Size, 4.7 in Barrel, ROMEO-X Pro Optic Package, LE Surplus, 17+1, XRAY3 Sights
This full-size P320 XFULL Pro is a 9mm XSeries model configured with a 4.7 in barrel, 17+1 capacity, and an installed SIG Sauer ROMEO-X Pro red-dot sight. It features a stainless slide with a Nitron/DLC-type finish, XRAY3 day/night sights, and the P320 modular FCU design. This pistol was issued for law enforcement personnel; this surplus model has been made available to the civilian market.
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 factory test and handling.
What’s Included
- SIG Sauer ROMEO-X Pro red-dot sight installed (2 MOA dot / 32 MOA circle; PRO/DeltaPoint Pro footprint; low-deck mounting with side controls)
- 3x 17-round steel P320 magazines (Made in Italy; numbered witness holes)
- SIG Sauer factory hard case
- SIG Sauer manuals, including ROMEO-X optic manual
The XSeries full-size grip module provides an extended beavertail and high undercut for control, paired with a flat-faced trigger and a reversible magazine release. The stainless steel slide wears a Nitron/DLC-type finish and includes an optics-cut PRO footprint. A 3-slot M1913 accessory rail is integrated into the polymer frame. The striker-fired action is chambered in 9mm Luger with a 17+1 capacity.
The ROMEO-X Pro red dot is factory installed and ready to use, offering a 2 MOA dot with a 32 MOA circle. Its 7075 aluminum housing, 15 brightness settings, and side battery access with side controls support duty-ready use. It is designed to co-witness with standard-height irons. XRAY3 day/night sights are included, with a green-dot front blade and a fixed rear notch located behind the optic; sight radius is approximately 6.6 in.
The slide is cut for the PRO footprint, compatible with ROMEO1PRO/ROMEO2 and Leupold DeltaPoint Pro pattern optics. Markings include "SIG SAUER P320" on the slide and "9mm x 19" on the chamber/barrel. The pistol has no external manual thumb safety.
Built and marked in Newington, NH, USA, this P320 uses SIG’s modular FCU design for flexibility across grip modules and top-end configurations. Magazines are steel and marked Made in Italy.