The ProMag M&P9 drum magazine holds 50 rounds of 9mm ammunition, designed for extended range sessions with Smith & Wesson M&P9 full-size and compact pistols.
- Caliber: 9mm Luger
- Capacity: 50 rounds
- Compatible Firearms: Smith & Wesson M&P9 full-size and compact models
- Material: Polymer body, steel internals
- Finish: Matte black
- Follower Type: Drum-style spring-wound system
- Includes: Loading lever
