SIG Sauer P320 XFULL XSeries PRO 9mm Luger with ROMEO-X Red Dot, 4.7" Barrel, Three 17-Round Magazines
This full-size P320 XSeries PRO package combines SIG Sauer's modular striker-fired platform with a factory-installed ROMEO-X red-dot sight. It is described as a law-enforcement issue pistol later released as surplus to the civilian market, and it comes in as-new condition with notable XSeries features, a 4.7" barrel, and three 17-round magazines. Made in the USA and configured with a flat trigger, reversible magazine release, and an optics-cut slide, this example is ready for precise, modern shooting.
Condition
Overall Condition: As-new condition with no signs of prior handling beyond what’s typical from inspection (see photos).
Specific Condition Details: This pistol appears unused beyond factory test-firing and routine handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
What’s Included
- SIG Sauer ROMEO-X red-dot sight (installed)
- SIG Sauer factory hard case
- Factory manuals and ROMEO-X documentation
- Cable lock
- Three 17-round SIG Sauer factory steel magazines
The XFULL size delivers a 17+1 capacity and a 4.7" barrel, paired with a flat-faced XSeries trigger for a consistent, straight-pull feel. A reversible magazine release supports left- or right-handed use, and the aggressive grip texture with SIG medallions provides confident purchase on the polymer frame.
The slide is finished matte black with front and rear serrations and an optics cut. SIG's ROMEO-X red dot is factory installed and direct-mounted to the slide. Its 7075 aluminum housing and side-load battery design add durability and serviceability without removing the optic for battery changes. Traditional iron sights remain in place with a green-dot front blade and a black square-notch rear.
A three-slot Picatinny accessory rail accommodates common weaponlights or accessories. The serialized stainless-steel modular FCU receiver design allows the fire-control unit to serve as the regulated receiver, while the grip module is polymer. The frame is marked NEWINGTON, NH, USA, and country of origin is USA.
This example is described as law-enforcement surplus that has been made available to the civilian market. It is a recent XSeries release identified by mfg part number W320F-9-BXR3-PRO-RXX. The factory case label shows SKU W320F-9-BXR3-PRO-RXX and matches the pistol's serial number on the gun.