Smith & Wesson SD .40 S&W (50) Rd – Black Polymer Drum DRM-A102

30-round drum magazine
Fits the Smith & Wesson® Shield™ 9mm pistols
Does not fit Smith & Wesson® M&P 9mm, M&P Shield® Plus 9mm, Shield® EZ 9mm pistols
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
Made in USA