The Sig Sauer P320 AXG Legion is a full-size striker-fired semi-automatic pistol chambered in 9mm Luger with a 3.9-inch barrel, 21+1 capacity, and Legion Gray finish. 
 

Key Specifications 

• Brand: Sig Sauer 
• Model Name: P320 AXG Legion 
• Caliber: 9mm Luger (9x19 Para) 
• Action Type: Striker Fire 
• Barrel Length: 3.9 inches 
• Overall Length: 8.2 inches 
• Capacity: 21+1 rounds (includes 3 magazines) 
• Weight: 2.3 lbs (36.10 oz) 
• Finish Color: Legion Gray 
• Grip Material: Full-size AXG G10 
• Sights Type: X-Ray 3 Day/Night 
• Trigger Type: Skeletonized Flat Trigger 
   

Detailed Features 

 
The full-size AXG G10 grip gives shooters a consistent hold for fast target acquisition and recoil management during rapid fire. X-Ray 3 Day/Night sights work across lighting conditions without modification. The flat skeletonized trigger has minimal overtravel and a clean break for precise shot placement in both competition and defensive contexts. The 21+1 round capacity reduces reload frequency during extended engagements or competitive stages. The Legion Gray Cerakote slide resists corrosion and wear. An optic-ready slide accepts direct optic mounting. 
 

Usage Scenarios 

 
The 21-round capacity makes this configuration well-suited for home defense, where extended engagement without reloading is an advantage. Competitive shooters running Production or carry optics divisions benefit from the high capacity and flat trigger combination. Training sessions at the range are practical given the controllable recoil and intuitive controls.

The full-capacity P320 AXG Legion generates strong positive feedback for its build quality and the metal AXG frame in particular. Owners note the added weight aids stability during shooting even though it reduces appeal for all-day carry. The ergonomic grip design is consistently praised for fitting a range of hand sizes.

Accuracy is a recurring positive, and the smooth flat trigger gets specific mention from competitive shooters who value the feel during fast strings. The 21-round capacity is a genuine selling point for both home defense and competition use.

The aesthetic of the Legion Gray finish draws favorable comments from those who prioritize appearance alongside function. Modularity through the P320 platform is an ongoing positive - the ability to swap grips, calibers, and slide configurations keeps the pistol relevant as needs change.

Price is the consistent friction point, with some buyers finding it steep relative to other full-size 9mm options. Recoil management gets good marks overall, with owners noting the weight distribution makes the pistol easier to control than lighter alternatives.