ProMag Sig Sauer Sig Pro .40 15 Round Blue Steel Magazine

This is a ProMag .40 S&W STEEL 15-round extended magazine for Sig Pro pistols.

Combining heat-treated steel construction with ProMag’s proprietary anti-fatigue springs and ultra-rugged Zytel polymer baseplates & followers, these magazines deliver impressive performance at a price that’s hard to beat.

Sig Sauer PRO handguns have long been on the cutting edge of polymer pistol innovation. The company’s first polymer pistol, first with an accessory rail and interchangeable grips, it remains a reliable and combat-ready choice for law enforcement officers around the world.

Like all ProMag magazines, they come with a lifetime replacement guarantee—so you’ll always have a working magazine on hand, no matter what.

Double down on firepower with a few spare extended magazines for your Sig Pro pistol!