SIG Sauer P320 XFive Legion 9mm Full-Size Pistol – Optic-Ready, TXG Grip, 21+1 Capacity
The P320 XFive Legion blends the modular P320 fire-control unit with competition-focused upgrades from SIG’s Legion series. A tungsten-infused TXG grip module, optic-ready slide, and 5-inch bull barrel give this full-size 9mm superb balance, fast follow-ups, and match-grade accuracy. With its Legion-gray PVD finish and extended 21-round magazine, this pistol arrives ready for range days or action-pistol stages.
Condition
Overall Condition: Excellent – showing only faint signs of prior use or handling.
Bore Condition: Excellent – clean, mirror finish, no signs of wear.
Rifling: Excellent – sharp lands and grooves.
Specific Condition Notes: Minor finish blemishes are present but do not affect function or appearance at normal viewing distance.
What’s Included
- SIG Sauer P320 XFive Legion 9mm pistol
- One 21-round factory steel magazine with orange follower
- One 17-round factory steel magazine with flush baseplate
The TXG grip module is molded with tungsten powder, raising the unloaded weight to roughly 43 ounces. The added mass tames muzzle rise while preserving the familiar polymer feel and modularity of the P320 platform.
A Legion-gray PVD-finished slide carries both front and rear cocking serrations, weight-reducing windows, and an R2 optics cut compatible with SIG ROMEO1 PRO and Leupold DeltaPoint Pro footprints. Dawson Precision fiber-optic front and fully adjustable rear sights provide a clear iron-sight picture when running the gun without an optic.
The 5-inch bull barrel, flat-face skeletonized trigger, and solid stainless guide rod with tunable recoil springs aim squarely at competition performance. Combined with the removable alloy mag-well funnel, these features speed reloads and deliver a crisp, consistent trigger pull.
The modular fire-control unit means the owner can reconfigure size or caliber by swapping grip modules, slides, and barrels—maintaining the serialized core while tailoring the pistol to different roles.




