The Sig Sauer P320 XTen is a full-size semi-automatic pistol chambered in 10mm Auto with a 15+1 round capacity. The 5-inch carbon steel barrel sits inside a polymer frame with a stainless steel chassis, beavertail, and Picatinny rail. Overall length is 8.50 inches and the pistol weighs 33 oz. The slide has a black Nitron finish with Romeo2-pattern serrations. 
 

Key Specifications 

• Brand: Sig Sauer 
• Model: P320 XTen 
• Caliber: 10mm Auto 
• Capacity: 15+1 rounds 
• Action Type: Striker Fire 
• Barrel Length: 5 inches 
• Overall Length (OAL): 8.50 inches 
• Weight: 2.1 lbs (33 oz) 
• Finish Color: Black 
• Frame Material: Polymer with Stainless Steel Frame w/ Beavertail & Picatinny Rail 
• Slide Finish: Black Nitron with Serrated / Romeo2 design 
• Grip Material: Black Polymer XSeries 
• Sight Configuration: XRAY3 Day/Night sights included 
   

Detailed Features 

 
The five-inch barrel hits a reasonable balance between sight radius and manageability for both competition and duty use. XRAY3 day/night sights come standard, and the slide is cut for Romeo2 optics if you want to go that route. 
 
The polymer XSeries grip has a positive texture and the flat trigger is a noticeable improvement over older P320 triggers: short reset, consistent break. The 10mm chambering gives it real stopping power, though recoil is more noticeable than a 9mm, especially for newer shooters. 
 
The stainless chassis inside the polymer frame keeps weight reasonable at 33 oz while adding rigidity. The Picatinny rail handles lights and lasers without adapters.

Users are generally positive about the P320 XTen. The build quality and Sig's reputation for reliability come up often, and the 10mm chambering gets attention from people who want more stopping power for self-defense or hunting.

The XRAY3 sights and Romeo2-ready slide are frequently praised. Most owners appreciate having a solid sight system from the factory while keeping the option to add a red dot later.

Recoil management is the most common point of discussion. The 10mm round is noticeably snappier than 9mm, and some shooters, particularly those new to high-caliber pistols, mention needing extra range time to get comfortable with it.

Ergonomics get good marks. The XSeries grip texture and beavertail work well for most hand sizes, though some users find the overall package too large for everyday carry.

Price is split: buyers who focus on the feature set tend to see it as fair; others compare it to competitors and find it on the expensive side. Reliability feedback is mostly positive with no widespread complaints.

The trigger and sights are excellent, with comfortable balance and impressive accuracy.