SIG Sauer P320 X-Full
SIG Sauer · Pistol · In Production · 2019
Also known as: P320 XFull, P320 X-Full Size, P320-XFULL, P320 XFull Size
Overview
The SIG Sauer P320 X-Full is the full-size, competition-oriented variant of the P320 modular platform, incorporating the X-Series ergonomic and performance enhancements. Featuring a 119mm bull barrel, 208mm overall length, and a 17+1 capacity in 9mm, the X-Full bridges the gap between the standard P320 Full Size and the competition-grade P320 X-Five. The X-Series polymer grip module includes an extended beavertail, deep undercut trigger guard, and a high-grip design that positions the shooter's hand as close to the bore axis as possible for improved recoil control. The flat-faced X-Series trigger provides a lighter, crisper break at approximately 25 newtons compared to the standard P320's 29-newton curved trigger. The optics-ready slide features a rear sight plate that can be removed to directly mount a Romeo1PRO or compatible red dot sight. Weighing 839 grams unloaded, the X-Full ships with XRay3 day/night sights, two 17-round magazines, and is compatible with the optional removable magwell and grip weight for further customization in competitive shooting disciplines.
Specifications
| Weight (empty) | 839 g (29.6 oz) |
| Weight (loaded) | 1050 g (37.0 oz) |
| Overall Length | 208 mm (8.19") |
| Barrel Length | 119 mm (4.69") |
| Height | 140 mm (5.51") |
| Width | 33 mm (1.30") |
| Sight Radius | 168 mm (6.61") |
| Action Type | Short Recoil |
| Firing Mechanism | Striker Fired |
| Trigger Type | Single Stage |
| Trigger Pull | 25 N (5.6 lbf) |
| Magazine Capacity | 17 rounds |
| Magazine Type | Detachable Box |
| Muzzle Velocity | 375 m/s (1230 fps) |
| Muzzle Energy | 524 J (386 ft·lbf) |
| Effective Range | 50 m (55 yd) |
| Maximum Range | 1800 m (1968 yd) |
| Barrel Rifling | Right Hand |
| Rifling Twist | 254 mm (10.00") |
| Number of Grooves | 6 |
| Frame Material | Polymer |
| Slide Material | Stainless Steel |
| Barrel Material | Stainless Steel |
| Finish | Nitron |
Calibers
- 9x19mm Parabellum · primary · 9mm NATO — also known as 9mm Luger, 9mm NATO, 9x19mm
Features
- Firing modes: Semi Automatic
- Feed systems: Detachable Box Magazine
- Safety mechanisms: Striker Safety, Disconnect Safety
- Features: Modular Fire Control Unit, X Series Grip Module, X Series Flat Trigger, Extended Beavertail, Deep Undercut Trigger Guard, Accessory Rail, X Ray3 Day Night Sights, Optic Ready, Rear Sight Plate Optic Mount, Bull Barrel, Removable Magwell, Grip Weight Compatible, Front Rear Slide Serrations, Interchangeable Grip Sizes, Reversible Mag Release, Nitron Finish, Three Point Takedown, Two Magazines Included
Base model
Service history
Operators
- Civilian Competitive Shooters
- Civilian Collectors & Enthusiasts
- U.S. Law Enforcement (Various Departments)
Production
Production years: 2019-present
Popular competition and range variant of the P320 platform; exact production numbers not publicly disclosed
Origin
Country of origin: United States
Designer: Ethan Lessard
Notes
The P320 X-Full sits in the P320 lineup between the standard Full Size and the premium X-Five competition model. While the X-Five features a 127mm barrel and 5-inch slide, the X-Full uses the standard 119mm barrel and full-size slide but adds all of the X-Series ergonomic enhancements. The X-Series flat trigger is a significant improvement over the standard curved trigger, with a smoother take-up and more consistent break point. The grip module is designed to accept the removable magwell accessory and optional grip weight, which adds mass to the grip for competition use. The bull barrel eliminates the need for a barrel bushing and provides a tighter barrel-to-slide fit for improved accuracy. The optic cut uses SIG's rear sight plate system, which allows mounting of the Romeo1PRO and other compatible optics without requiring custom slide milling. The X-Full is only available in 9mm. MSRP is approximately $650-$750.
Background
The P320 X-Full was created to offer the X-Series performance enhancements in a full-size format that was more accessible than the premium X-Five. While the X-Five targets serious competitive shooters with its longer barrel and higher price point, the X-Full brings the same grip ergonomics, flat trigger, and optics readiness to a wider audience at a lower price. The X-Series grip module's extended beavertail and deep undercut have become so popular that many P320 owners retroactively upgrade their standard grip modules to X-Series equivalents. The removable magwell and grip weight compatibility make the X-Full a versatile platform that can be configured for USPSA, IDPA, or general range use.