The Sig Sauer P320 AXG Legion is a full-size semi-automatic pistol chambered in 9mm. It has a 3.9-inch black carbon steel barrel, an optic ready serrated stainless steel slide, and an AXG aluminum grip module with a beavertail and Picatinny rail. The frame and slide carry a Legion Gray Cerakote finish, and the pistol ships with night sights and a Romeo X red dot. Capacity is 10+1 rounds. 
 

Key Specifications 

• Brand: Sig Sauer 
• Model: P320 AXG Legion 
• Caliber: 9mm 
• Action: Semi Auto 
• Capacity: 10+1 rounds 
• Barrel Length: 3.9 inches 
• Color/Finish: Legion Gray 
   

Detailed Features 

• 3.9-inch black carbon steel barrel 
• Optic ready, serrated stainless steel slide 
• AXG aluminum grip module with beavertail and Picatinny rail 
• Legion Gray Cerakote on frame and slide 
• Night sights included 
• Romeo X red dot included

Owners of the P320 AXG Legion consistently cite the AXG aluminum grip module as the reason they chose this variant over standard P320 configurations. The metal frame shifts the weight balance noticeably, and most find it steadies the pistol during rapid strings. Night sight quality gets solid marks, and the optic ready cut is described as clean and usable without additional machining.

The Legion Gray Cerakote holds up well in regular use according to owners who carry or train with the pistol frequently. The 10-round capacity on this configuration is a common frustration, especially for those in states where higher capacity would be legal, though most accept it as a limitation of this specific configuration rather than the P320 platform itself.

The P320 AXG Legion sits at a premium price in the P320 family, and opinions split over whether the AXG grip module and Legion treatment justify the cost difference. Shooters who want a metal grip frame on a modular striker-fired platform generally conclude that it does. Those coming from other striker-fired pistols sometimes need time to acclimate to the P320 trigger feel.