Sig Sauer P320 XSeries XFULL 9mm with ROMEO-X PRO Red Dot, LE Issued Professional Program, 4.7 in Barrel, 17+1, XRAY3 Sights
This P320 XSeries XFULL is a full-size, 9mm Luger striker-fired pistol issued for law enforcement and released to the civilian market as a Professional Program surplus model. It comes as-new with a factory-installed SIG Sauer ROMEO-X PRO red dot that co-witnesses with XRAY3 Day/Night sights, plus a 4.7 in barrel and 17+1 capacity. Built in the United States, it features the modular stainless-steel FCU and a Nitron-finished slide cut for the PRO footprint.
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
- Optic: SIG Sauer ROMEO-X PRO open-emitter red-dot sight installed; 7075-aluminum housing, side-load battery, low deck height for co-witness
- Case: SIG Sauer factory hard case
- Paperwork: Owner's manuals and documentation (SIG Sauer and ROMEO-X)
- Lock: Cable lock
- Magazines: 3x 17-round factory SIG Sauer steel magazines for the P320 full-size
The XSeries XFULL format delivers a 4.7 in barrel, full-size slide, and the XSeries full-size polymer grip module with an extended beavertail and high undercut. The flat-faced trigger provides a consistent, straight press, and the modular stainless-steel fire control unit anchors the platform's adaptability.
The slide wears a black Nitron finish with front and rear serrations and an optics cut machined for the PRO footprint. The installed ROMEO-X PRO offers a red reticle, 7075-aluminum housing, and a side-load battery design. Its low deck height enables clean co-witness with the XRAY3 sights.
Factory XRAY3 Day/Night sights include a high-visibility XRAY3 front sight with a green ring and a dovetailed rear sight. With the ROMEO-X PRO in place, the sight picture co-witnesses for a straightforward transition between dot and irons.
Controls are practical and familiar: ambidextrous slide catch levers, a 4-slot M1913 accessory rail, and no external manual safety. The full-size configuration pairs a 17+1 capacity with three 17-round magazines included.
Provenance matters here: this pistol was issued for law enforcement personnel and, as a Professional Program surplus model, has been made available to the civilian market. The factory case label is dated 23-OCT-2024, underscoring its recent production and release.