ProMag Sig MPX 9mm 30-Round Drum Magazine

This is a 30-round 9mm Sig MPX drum magazine from ProMag.Load up and hit the range with the ProMag Sig Sauer MPX 9mm 30-round drum magazine.Featuring a rugged DuPont Zytel polymer body, this MPX 9mm drum mag is designed for exceptional corrosion and shock resistance, and boasts aggressive texturing for a positive, non-slip grip and faster reloads.Plus, the steel feed lips, heat-treated chrome silicon wire internal spring, and injection-molded polymer follower work together to eliminate binding f