This is a factory SIG P320 Compact 13-round magazine, chambered in .40 S&W and .357 SIG.

This magazine will also fit SIG P250 Compact pistols.

This SIG P320 magazine features a carbon steel construction, holding up to 13 rounds of .40 S&W / .357 SIG ammunition. This magazine also has witness holes along the side of the magazine and an impact-resistant polymer baseplate.

Always high quality stainless steel magazine constructions and reliable feeding for your Sig Sauer P320 compact.

Having spare magazines for any firearm is a must – especially for the SIG SAUER P320 compact. Quality magazines don’t go bad, and extra mags allow you to keep your SIG P320/P250 functioning at peak performance.

More Info about the Sig Sauer P320 Compact 40/357 Pistol
With its unmatched modularity, unprecedented accuracy, and uncompromising reliability, the state-of-the-art SIG SAUER P320 has quickly become one of the most sought after firearms on the market today. Chosen by all branches of the U.S. military, as well as law enforcement agencies across the country and around the world, the P320 redefines the modern handgun.