Sig Sauer P320 X-Series XFULL 9mm, 4.7 inch Barrel, Optic-Cut Slide, Flat Trigger, Flared Magwell, Dawson Front Sight, 1x21rd + 3x17rd Mags
This full-size Sig Sauer P320 X-Series XFULL stands out with its optic-cut slide, flat-faced trigger, and X-Series grip module featuring an extended beavertail and deep undercut. It includes a flared magazine well and a Dawson-marked front sight installed. The package is rounded out by four steel magazines (one 21-round and three 17-round) and an additional SIG Sauer P320 grip module. Marked Newington, NH and built in the USA, it leverages the P320’s modular FCU architecture and ambidextrous slide catch levers.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: This firearm is in solid shape. There are visible scratches and blemishes on the exterior surfaces.
What’s Included
- Sig Sauer P320 X-Series XFULL 9mm Luger pistol
- 1x 21-round SIG P320 steel magazine (body marked "MADE IN ITALY")
- 3x 17-round SIG P320 steel magazines (bodies marked "MADE IN ITALY")
- SIG Sauer P320 grip module (additional; in SIG Genuine Parts packaging)
- Flared magazine well (installed)
- Dawson-marked front sight (installed)
The XFULL configuration delivers a 4.7 inch barrel and full-size grip, providing the X-Series ergonomics with an extended beavertail and deep undercut. Its striker-fired system is paired with a flat-faced trigger for a consistent, straight-back press. Ambidextrous slide catch levers support versatile handling.
The slide is factory optic cut and currently fitted with a removable rear sight/cover plate. A Dawson-marked front sight teams with a square-notch rear sight on the plate for a clear sight picture. Frame and slide markings read "NEWINGTON NH," and this model is made in the USA.
Sig’s modular P320 Fire Control Unit architecture allows grip module swaps without altering the serialized core. This pistol includes an installed flared magazine well and a full-length M1913/Picatinny accessory rail with five slots for mounting compatible accessories.
Capacity is listed at a maximum of 21+1, and this example includes one 21-round and three 17-round magazines. The included magazines are steel, with bodies stamped "MADE IN ITALY." An additional SIG Sauer P320 grip module in SIG Genuine Parts packaging is also included.