SIG Sauer P320 X-Series AXG Legion 9mm – 3.9 in Barrel, Legion Gray, Optics-Ready R2, Integrated Two-Port Comp, 21+1, Three 21-rd Mags
The P320 X-Series AXG Legion pairs SIG's modular striker-fired system with an aluminum AXG grip module and a slide-integrated two-port expansion chamber. This 9mm model is optics-ready with the R2 footprint and comes finished in Legion Gray with X-RAY3 tritium day/night sights. It ships with three 21-round magazines and features a flat, skeletonized trigger and removable flared magwell.
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: The exterior shows only minor blemishes. There is light carbon build-up in the slide-integrated compensator.
What's Included
- SIG Sauer factory hard case
- SIG Sauer owner's manual
- Legion literature
- Three 21-round SIG P320 magazines
The AXG aluminum grip module provides a solid, metal-frame feel with an extended beavertail and removable flared magwell for confident control and quick reloads. Textured G10 grip panels with the Legion chevron motif further stabilize the hand without excess bulk.
The extended Legion Gray slide houses a 3.9 inch non-threaded barrel and integrates a two-port expansion chamber to mitigate muzzle rise. Front and rear serrations aid manipulation, and ambidextrous slide-catch levers support a wide range of users.
The slide is optics-ready with SIG's R2 footprint and includes a cover plate when running iron sights. SIG X-RAY3 tritium day/night sights deliver a high-visibility green front with a fixed tritium rear for low-light clarity.
This P320 variant is striker-fired with a flat, skeletonized trigger for a consistent press, and a left-side magazine release. Capacity is 21+1 in 9mm Luger, and the accessory rail allows mounting of compatible lights or lasers as needed.
Marked SIG SAUER INC., NEWINGTON NH USA, the AXG Legion was announced in 2023 and carries the Legion Gray finish across the slide and aluminum grip module. The package includes three extended steel magazines to keep the pistol range-ready out of the box.