SIG Sauer P320 XFULL XSeries PRO 9mm with ROMEO-X, 4.7 in Barrel, 17+1 Capacity, Law Enforcement Professional Program Surplus
This full-size SIG Sauer P320 XFULL XSeries PRO package pairs a 4.7 in barrel with an optics-ready PRO-footprint slide and a factory-installed SIG Sauer ROMEO-X red dot. It includes co-witness-height SIG XRAY3 day/night sights and the XSeries grip module with an extended beavertail and deep undercut. 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 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 the factory test fire and routine handling for inspection.
What’s Included
- SIG Sauer ROMEO-X red dot sight (installed)
- SIG Sauer factory hard case
- SIG Sauer owner's manual
- ROMEO-X documentation
- Three 17-round steel magazines
The XSeries PRO configuration delivers practical upgrades in a clean factory build. The slide is stainless steel with a Nitron black finish and features front and rear serrations for confident manipulation. The PRO optics cut accepts the included ROMEO-X and is paired with co-witness-height SIG XRAY3 day/night sights for a clear aiming solution with or without the optic.
The XSeries polymer grip module adds an extended beavertail and deep undercut to promote a secure, high hand position. A flat-faced trigger and reversible magazine release support consistent control and adaptability for different users. A 3-slot M1913 Picatinny accessory rail on the dust cover accommodates common lights or accessories.
This full-size 9mm Luger variant offers a 17+1 capacity and uses steel 17-round P320 magazines. The frame is marked NEWINGTON, NH USA, and the pistol is made in the United States. The case label is dated 23-OCT-2024, and the configuration corresponds to SIG Sauer's Professional Program specification made available as surplus to the civilian market.
Factory identifiers for this package include UPC 798681694549 and part number W320F-9-BXR3-PRO-RXX. The combination of the PRO slide, ROMEO-X optic, XRAY3 sights, and XSeries ergonomics makes this a complete, ready-to-use setup in as-new condition.



