ProMag S&W M&P-40 .40 S&W 15rd Handgun Magazine, Blued Steel - SMI-A11

A double-stack 15-round detachable magazine for Smith & Wesson M&P .40 S&W pistols. Constructed from heat-treated blued steel with a follower lock-plate and base-plate molded from DuPont Zytel-based polymer, featuring a chrome-silicon spring for reliable performance. Made in the U.S.A.