The Sig Sauer P320 Compact is a semi-automatic handgun chambered in 40 S&W with a 3.9-inch barrel. It has a Nitron finish, synthetic grip, and contrast sights. The magazine capacity is 13+1. 
 

Key Specifications 

• Brand: Sig Sauer 
• Model: P320 Compact 
• Caliber: 40 S&W 
• Action: Semi Auto 
• Barrel Length: 3.9 in 
• Capacity: 13+1 
• Color/Finish: Nitron 
   

Detailed Features 

• 3.9-inch barrel 
• Nitron finish on slide 
• Synthetic grip frame 
• Contrast sights 
• 13+1 round capacity in 40 S&W

P320 Compact owners in 40 S&W often describe the platform as a comfortable carry size that balances grip length and concealability. The Nitron finish gets general approval for durability, though some users prefer a more matte appearance.

The contrast sights are considered adequate out of the box by most, though a notable subset upgrades to night sights early. The trigger on the P320 platform draws mixed feedback, with some finding the reset intuitive and others preferring a crisper break after break-in.

Value reception is generally strong given Sig Sauer's build quality on the P320 line. Owners who chose the 40 S&W chambering specifically note the added recoil impulse compared to 9mm variants, which splits opinion between those who prefer it and those who find it fatiguing during longer sessions.