The Sig Sauer P320 X-Carry Legion is a striker-fired 9mm pistol with a 4.6-inch barrel, 10+1 capacity, a TXG tungsten-infused grip module, an optics-ready slide, and a Legion Gray PVD finish. Three 10-round steel magazines are included. 
 

Key Specifications 

• Manufacturer: Sig Sauer 
• Model: P320 X-Carry Legion 
• Type: Semi-auto Pistol 
• Action: Striker Fired 
• Caliber: 9mm 
• Finish: Legion Gray PVD 
• Frame Material: Polymer Frame with TXG tungsten grip module 
• Barrel Length: 4.6 inches 
• Overall Length: 8.1 inches 
• Capacity: 10+1 rounds 
• Number of Magazines Included: 3 
• Magazine Description: 10 Rd. Steel 
• Sights Type: Adjustable XRAY3 Day/Night Sights 
• Weight (unloaded): 40.5 oz. 
   

Detailed Features 

 
The TXG tungsten-infused grip module is the primary distinguishing feature of the Legion series. Tungsten is denser than steel, so the grip module adds weight at the shooter's hand rather than at the muzzle, which lowers felt recoil and muzzle flip compared to a standard polymer grip. 
 
The XRAY3 sights use a high-visibility front tritium lamp with a green fiber optic ring and a rear tritium two-dot configuration. They are adjustable for elevation and windage from the factory. 
 
The optics-ready slide is machined to accept ROMEO1PRO, DeltaPoint PRO, RMR, and other common footprints without an adapter plate. This is a direct-mount system. 
 
The threaded barrel accepts suppressors and muzzle devices on standard threads. The Xseries flat skeleton trigger has a shorter take-up than the standard P320 trigger and a crisper break. 
 

Target Audience 

Competition shooters, law enforcement, and concealed carry users who want the P320 platform's modularity with Legion-level components from the factory. The 10-round magazine configuration reflects capacity-restricted markets. 
 

Usage Scenarios 

• Competitive Shooting: TXG grip weight reduction and flat trigger benefit fast, accurate splits in USPSA and similar formats. 
• Home Defense: Optics-ready slide and XRAY3 sights work in both lighted and low-light conditions. 
• Carry: At 40.5 oz unloaded the pistol is heavy for everyday carry; most users who carry it full-time do so in a duty or competition holster rather than concealment.

The Sig Sauer P320 X-Carry Legion 9mm gets strong reviews from competition shooters and serious handgun users who understand what the Legion series adds over a standard P320.

The TXG grip module is the most-discussed feature. Owners report a measurable reduction in muzzle flip compared to a standard P320 grip, and competitive shooters who have run both describe it as a genuine performance advantage. The added weight at the grip feels natural rather than excessive during shooting.

The XRAY3 sights get consistent praise for clarity in both daylight and low-light conditions. The green fiber optic front is called out specifically for fast acquisition in outdoor bright light.

The optics-ready slide and its compatibility with common red dot footprints is valued by shooters who run or plan to run a mounted optic. The direct-mount system simplifies the build compared to older adapter-plate systems.

The flat skeleton trigger receives positive comments on feel and reset, with most owners noting it is an improvement over the standard P320 trigger without needing a custom trigger job.

Weight at 40.5 oz unloaded is the most common practical concern. For competition and duty use it is not an issue, but daily concealed carry is noted as challenging. Most owners who EDC it do so in a larger holster rather than standard IWB carry.

Price is acknowledged as a premium over base P320 configurations. Owners who compared the Legion's out-of-the-box components to building equivalent upgrades on a standard P320 generally find the Legion pricing reasonable when component costs are considered.