ProMag DRMA64 50-Round Drum Magazine 40 S&W Black Polymer - S&W M&P40

The ProMag DRMA64 is a high-capacity 50-round drum magazine purpose-built for .40 S&W Smith & Wesson M&P40 series pistols. Designed for shooters who want maximum firepower between reloads, this drum keeps the pistol running through extended range sessions, training days, and long competition stages without the constant mag swaps a standard box magazine demands.

Constructed from durable black polymer with an injection-molded magazine follower, the DRMA64 keeps weight down while standing up to repeated use. The drum geometry feeds reliably from a 50-round capacity, giving .40 S&W M&P40 owners a meaningful bump in on-gun round count for plinking, drills, and recreational shooting where higher capacities are permitted.

Whether you are topping off the range bag or running a dedicated training pistol, this ProMag drum delivers the extra round count S&W M&P40 shooters have been looking for in a high-capacity package.