ProMag S&W M&P-9 Double Stack Magazine 9mm Blued Steel 17/rd

?A double-stack ProMag17-rd magazine for the Smith & Wesson M&P series of pistols in 9x19mm. Constructed from heat-treated blued-steel, with a follower, lock-plate, and base-plate molded from a proprietary DuPont Zytel based black polymer; and using a spring wound from Chrome-silicon wire and heat-treated for strength and reliability. 17-round magazineFits Smith & WessonA(R) M&PA(R)9 9mm series pistolsMagazine body constructed of heat treated steel with black oxide finishInjection molded magazine followerMagazine spring formed from heat treated chrome silicone wire Made in USA