ProMag DRMA77 9mm 50rd Drum Mag for S&W Shield Plus

The ProMag DRMA77 is a high-capacity drum magazine designed for the S&W M&P Shield Plus chambered in 9mm. Constructed with a proprietary DuPont Zytel-based polymer body and a blue steel upper magazine tower, it is intended to support extended range sessions, training, and other controlled shooting activities where elevated capacity is desired. The magazine uses an injection-molded follower and a spring formed from heat-treated stainless steel, and is manufactured in the USA. ProMag backs its magazines with a lifetime guarantee against manufacturer’s defects.

Key Specifications

• The capacity is 50rd for extended shooting sessions.
• Caliber is 9mm to match S&W M&P Shield Plus pistols.
• Designed to fit S&W M&P Shield Plus pistols.
• The magazine body is constructed from a DuPont Zytel based polymer.
• The upper magazine tower is made from blue steel.
• Includes an injection molded magazine follower for reliable feeding.
• The magazine spring is formed from heat treated stainless steel.
• The exterior finish and color are Black.
• Product type is a Drum style magazine.
• Manufactured in the USA and backed by a lifetime guarantee against manufacturer’s defects.

This drum magazine provides a practical solution when you need high-capacity feeding for extended range work or structured training. Built with durable polymer and steel components and supported by ProMag’s lifetime guarantee, the DRMA77 offers a purpose-driven option for shooters seeking increased capacity in a form factor matched to the Shield Plus platform.