SIG Sauer P320-AXG Legion 9mm, Custom Works Full-Size, Legion Gray, Optics-Ready Pro-Cut Slide with Integrated Compensation, Factory Sights, 3.9 in Barrel, 10+1
This SIG Sauer P320-AXG Legion is a Custom Works, full-size 9mm finished in Legion Gray Cerakote with the AXG alloy grip module and detachable flared magwell. It features an optics-cut Pro-Cut slide with integrated slide-based porting/compensation, factory sights, and a flat-faced trigger. Notable extras include LOK Brass Legion grip panels installed, three 10-round steel magazines marked Made in Italy, and premium add-ons in packaging such as the Grayguns Adjustable Hybrid Trigger Competition System and a DPM Systems recoil reduction assembly. The factory case label is dated 31-OCT-2023, and the pistol is marked under MPN 320AXGF-9-LEGION-10.
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: This example shows minimal handling, and the bore presents a bright, reflective finish.
What’s Included
- SIG Sauer factory hard case with matching label (320AXGF-9-LEGION-10)
- SIG Sauer P320 owner's manual
- 3x 10-round steel magazines (marked "MADE IN ITALY")
- DPM Systems Recoil Reduction System for SIG P320 AXG Legion 3.9 (4.7 ported slide), in packaging
- Spare AXG Legion grip panel set
- Spare AXG Legion backstrap insert
- Grayguns SIG P320 Adjustable Hybrid Trigger (AHT) Competition System kit, in packaging (not installed)
- Armory Craft takedown lever, in packaging (not installed)
- Henning competition magazine upgrade kit(s) for SIG P320, in packaging
- Original parts
The AXG alloy grip module anchors this Legion build with a detachable flared magwell, checkered frontstrap, beavertail, and an undercut trigger guard for consistent purchase. Interchangeable grip panels and a backstrap allow quick fit adjustments. This example is outfitted with LOK Brass Legion grip panels, and a spare AXG Legion grip panel set and backstrap insert are included.
The Pro-Cut slide is finished in Legion Gray Cerakote and is optics-ready with a factory filler plate installed. It supports the SIG ROMEO1Pro/ROMEO2 footprint and carries deep front and rear serrations for positive manipulation. Integrated slide-based porting/compensation is factory-executed, and sights include a high-visibility front and a plain black rear notch on the optic plate.
Built on the modular P320 platform with a removable FCU, this full-size 9mm uses a 3.9 in barrel and a flat-faced trigger. Dimensions are 8.2 in overall length, 5.5 in height, and 1.6 in width. Weight is 36.1 oz with magazine, and capacity is 10+1 using the included steel magazines.
Thoughtful extras round out the package: the Grayguns Adjustable Hybrid Trigger Competition System kit (not installed), a DPM Systems recoil reduction assembly for the AXG Legion 3.9 configuration, an Armory Craft takedown lever, Henning competition magazine upgrade kit(s), and the original parts. The case label is dated 31-OCT-2023, reflecting the current Legion program configuration and aesthetic.

