The Sig Sauer P320 X-Compact is a 9mm striker-fired pistol with a modular design and a 3.6-inch barrel. Overall length is 7 inches, weight is 25.3 oz, and it ships with two 15-round magazines. The Nitron Black finish covers a stainless steel slide over a polymer Modular X Grip frame. 
 
Key Specifications 

• Brand: Sig Sauer 
• Model: P320 X-Compact 
• Type: Semi-Automatic 
• Caliber: 9mm Luger (9x19 Para) 
• Barrel Length: 3.6 inches 
• Overall Length: 7 inches 
• Capacity: 15 rounds (2 magazines included) 
• Weight: 25.3 oz (approximately 1.76 lbs) 
• Finish: Nitron Black 
• Grip Type: Modular X Grip 
• Sights: XRAY3 Front Sight & Night Sight Rear Plate 
   
  Detailed Features 
   
  The Modular X Grip lets users adjust grip dimensions without tools for a better fit. XRAY3 sights use a day/night setup - the front sight is bright in daylight and glows at night, paired with a night sight rear plate for fast alignment in low light. The optics-ready system has an R2 base plate for direct red dot mounting. A flat-faced trigger provides a consistent pull length. 
   
  Usage Scenarios 
   

1. Home Defense: 15-round capacity and dependable cycling handle the role well. 
2. Competitive Shooting: Optics-ready slide and grip customization suit action shooting formats. 
3. Everyday Carry: The 7-inch overall length and 25.3 oz weight are manageable for most carry setups.

The P320 X-Compact draws generally positive feedback from firearm enthusiasts, with the ergonomic design and modularity getting the most consistent praise. Owners find the grip comfortable and appreciate the ability to customize grip dimensions.

Performance reviews put the X-Compact as reliable and accurate across ammunition types. The Nitron black finish earns positive marks for durability and appearance.

Some discussion touches on size and weight comparisons with other compact pistols. Most consider it well-suited for concealed carry, though a segment finds it slightly on the bulkier side.

Drop safety history is another topic that surfaces, specifically around early P320 models before Sig's voluntary upgrade program. Buyers of this model should confirm whether the upgrade has been applied. Overall opinion remains favorable, with the pistol's versatile performance being the main recommendation driver.