Sig Sauer P320 9mm — Custom XFive-Pattern Grip, Full-Size Optics-Cut Slide, 5.5 in 1/2x28 Threaded Barrel, 21+1, Two 21-Round Magazines
This custom-configured Sig Sauer P320 stands out with a P320 XFive frame paired to a standard, optics-cut, full-size P320 slide assembly and a 5.5 inch steel threaded barrel. It features a flat-faced X-Series trigger, flared magwell, and two steel 21-round magazines made in Italy with extended base pads. The modular FCU design supports multi-caliber and configuration changes, and the frame is marked NEWINGTON, NH, USA.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are minor, superficial scratches and blemishes.
What’s Included
- 2x 21-round steel double-stack magazines made in Italy with extended base pads
- Knurled 1/2x28 thread protector (installed)
- Flared magazine well funnel (installed)
- Optics-cut cover plate with rear sight (installed)
This P320 is configured on a P320 XFive frame with a standard, optic cut, P320 slide assembly. The XFive-pattern grip module adds an extended beavertail, a high undercut, molded texture, and a flared magwell for efficient handling and reloads. The flat-faced, skeletonized X-Series trigger provides a clean, consistent break in a striker-fired action.
The full-size slide features an optics cut with a cover plate that retains the rear sight, plus front and rear serrations for confident manipulation. It maintains a full-size profile with no lightening windows. Three-dot iron sights are installed, with a dovetailed single-dot front and a dovetailed two-dot rear on the cover plate.
The 5.5 inch steel barrel is threaded 1/2x28 and includes a knurled thread protector. A MIL-STD-1913 three-slot dust-cover rail is molded into the frame for mounting compatible accessories. The triangular magazine release is easy to access without compromising grip.
Capacity is 21+1 in 9mm Luger. Two included P320 double-stack steel magazines feature extended base pads and witness marks at 5/10/17/21. As a modular P320, the serialized FCU enables multi-caliber and configuration changes. Country of origin is USA, with the frame marked NEWINGTON, NH.