ProMag Standard 8rd Single Stack 9mm Luger Fits S&W M39 Blued Steel SMI16

A single-stack 8-rd magazine for the Smith & Wesson Model 39 pistols in caliber 9mm. Constructed from heat-treated blued-steel with a follower 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. Made in the U.S.A.