The Sig Sauer P320 X-Compact Gen 3 is a striker-fired 9mm with a modular grip system and an optics-ready slide. At 3.6 inches of barrel and 25.3 oz, it sits at a useful point between subcompact and full-size pistols. Ships with two 10-round steel magazines. 
 
Key Specifications 

• Manufacturer: Sig Sauer 
• Model: P320 X-Compact 
• Type: Semi-Auto Pistol 
• Action: Striker Fired 
• Caliber: 9mm Luger (9x19 Para) 
• Barrel Length: 3.6 inches 
• Capacity: 10+1 rounds (includes two 10-round steel magazines) 
• Weight: 2.9 lbs (25.3 oz) 
• Finish: Black Nitron slide, polymer frame 
   
  Detailed Features 
  The modular grip frame can be swapped out for different sizes without tools, which lets the pistol fit a wider range of hand sizes. The optics-ready slide accepts common red dot footprints directly. Fixed sights are installed from the factory for immediate use. The striker-fire system runs a consistent pull weight across the trigger travel. The high-strength polymer frame keeps weight reasonable while handling the stresses of regular use. 
   
  Usage Scenarios 
• Concealed Carry: The compact dimensions work under most clothing with a good holster. 
• Home Defense: Controllable recoil and 10+1 capacity are practical for the role. 
• Competitive Shooting: The optics-ready design adapts well to action shooting formats that allow red dots.

The P320 X-Compact Gen 3 attracts positive feedback in EDC discussions, mainly for the ergonomics and modular design. Owners appreciate how the grip feels in hand and the ability to switch grip modules to fit individual hand sizes.

The P320 platform's reliability across ammunition types comes up consistently. Accuracy is generally reported as good for both carry practice and self-defense.

The optics-ready slide is a strong draw for shooters who want to mount a red dot. Those who have done so find the installation clean and functional without extra adapters.

Size and weight draw varied comments. Many find the X-Compact well-balanced for daily carry; a few consider it slightly large compared to more minimalist options. Trigger feel gets largely positive marks, with most owners describing it as smooth and manageable. The black Nitron finish is considered visually clean and holds up well to carry wear. Pricing places this gun toward the higher end of the compact market, but most owners view the features as justifying the cost. Aftermarket support for the P320 platform is extensive, which adds appeal for those who like to customize.