The ProMag drum magazine provides a high-capacity feeding option specifically designed for the Smith & Wesson M&P Shield Plus in 9mm. Constructed with a proprietary DuPont Zytel-based polymer body and a blue steel upper feed tower, the magazine combines modern polymer molding with steel components where feed geometry and durability are critical. Its injection-molded follower and heat-treated stainless steel spring are intended to promote reliable feeding in high-capacity service and recreational use.
Key Specifications
- The magazine holds 30 rounds for extended capacity compared to standard single-stack magazines.
- Designed to fit S&W M&P Shield Plus pistols for correct form-fit installation and function.
- Chambered for 9mm caliber as listed in the manufacturer attributes.
- The magazine body is made from a proprietary DuPont Zytel-based polymer to reduce weight and resist impact.
- The upper feed tower is constructed from blue steel to maintain reliable cartridge presentation.
- The follower is injection molded for consistent geometry and function.
- The magazine spring is formed from heat-treated stainless steel for corrosion resistance and spring life.
- The finish/color is specified as black.
- Product type is listed as a pistol magazine suitable for use in compatible firearms.
- Manufactured in the USA according to the product description.
Whether used for extended-range practice sessions or for those who prefer fewer reloads during competitive or recreational shooting, this ProMag drum magazine offers a practical high-capacity option for the Shield Plus platform. Its combination of polymer and steel components aims to balance weight, durability, and reliable feeding in everyday operational contexts.









