Pro Mag Industries Drum Magazine 9mm 50-Rounds for S&W M&P9

Drum Magazine Features ProMag magazines are designed utilizing both traditional stamping and welding of heat-treated high carbon steel and modern precision injection molding of mil-spec polymer compounds. Every ProMag magazine is backed by a lifetime guarantee against manufacturer s defects. Made in USA. Drum Magazine Specifications Manufacturer: ProMag Manufacturer Part #: DRM-A54 Type: Magazine Model: Drum Caliber: 9mm Capacity: 50Rd Color: Black Fit: Smith & Wesson M&P-9 Drum housing constructed of a proprietary DuPont Zytel based polymer Magazine upper tower has full length steel internal insert stamped and welded like the factory magazine Injection molded magazine follower Magazine spring formed from heat treated stainless steel