This is a 9mm BLUE STEEL 10-round magazine for Sig Pro pistols.

These 10-round Sig Pro magazines are built from heat-treated carbon steel with a special anti-friction coating, high-tensile music wire spring for reliable feeding, along with grip-extending polymer base plates and polymer followers.

Sig Sauer’s PRO handguns have long been on the cutting edge of polymer pistol innovation. And with Mec-Gar’s constant development and optimization of magazines, these two are the perfect combination for outperforming in competitions or reliable self-defense …

Mec-Gar is the producer of Sig Sauer factory magazines, and they’ve spent decades refining their designs and manufacturing techniques to deliver the world’s most reliable firearms magazines. Military, police, and top civilian shooters trust Mec-Gar magazines with their lives every single day.

Grab a few improved magazines for your Sig Pro pistol today!