The Sig Sauer P320 Full is a full-size striker-fired pistol chambered in 9mm with a 4.7-inch barrel. It has a black polymer frame with night sights and ships with a 17-round magazine. This is a qualified professional variant. 
 

Key Specifications 

• Brand: Sig Sauer 
• Model: P320 
• Caliber: 9mm 
• Action: Semi Auto 
• Capacity: 17+1 
• Barrel Length: 4.7 inches 
• Color/Finish: Black 
   

Detailed Features 

• 4.7-inch barrel in full-size configuration 
• Night sights 
• Polymer grip module 
• 17-round magazine capacity 
• Qualified professional variant

The P320 Full gets appreciated for its full-size frame and longer 4.7-inch barrel, which owners say makes it a natural fit for range work and duty use. Recoil management at this size is comfortable for most shooters, and the 17-round capacity is right in line with expectations for the platform.

Night sights are a consistent positive note. Owners report they are bright and durable out of the box. The modular grip system remains a point of appreciation, making it easy to swap the frame size or caliber if needs change over time.

The P320 Full draws some criticism for its overall length compared to competitors in the same capacity range. A segment of owners find the grip module lacks texture for a firearm of this size. The qualified professional purchase restriction is also a limiting factor for those outside eligible buyer categories.