Promag DRMA15 S&W 9mm Luger M&P Shield 50Rd Black Polymer Drum Made In The USA, This Drum S&W Magazine Is constructed Of Dupont Zytel Polymer With An Injection Molded Mag Follower And a Heat-Treated Stainless Steel Spring. Caliber: 9mm Luger Capacity: 50 Finish: Black Model: S&W Material: Polymer Model Fit: M&P Shield Brand Fit: S&W Capacity: 50 Manufacturer: Promag Mfg Number: DRMA15 Model: S&W