ProMag Smith & Wesson M&P Shield .40 S&W 50-Round Drum Magazine

This is a ProMag .40 S&W 50-round drum magazine for the M&P Shield.When you absolutely cannot run out of ammunition, go with the M&P Shield .40 drum magazine from ProMag.With 50 rounds of .40 S&W on board, this M&P Shield magazine is a great choice for blasting targets at the range or home defense.Featuring an upper tower constructed out of heat-treated blued steel and a lightweight polymer drum body, this high-capacity magazine holds up to whatever you can throw at it.Further, the injection-molded polymer follower and stainless steel spring keep ammo feeding reliably for dependable service in high-stress shooting situations.When you need US-made performance at an affordable price, go with ProMag magazines from GunMag Warehouse.