This is a double-stack 25 round magazine from ProMag for the Smith & Wesson M&P-40 pistol only chambered in .40 S&W. It is constructed from heat-treated blued-steel, with a follower, lock-plate, and base-plate molded from a proprietary Zytel based black polymer and using a spring wound from Chrome-silicon wire and heat-treated for strength and reliability.

Caliber: .40 S&W

Capacity: 25 rounds

Finish: Blued

Material: Steel

Fits: S&W M&P40 series pistols

ProMag magazines are made in the USA and backed by a lifetime guarantee against manufacturer's defects. Each step of the assembly process is checked and double checked to maintain the same consistent level of quality.