ProMag S&W SD40 .40 S&W 50-Round Drum Magazine

The ProMag Smith & Wesson SD40 drum magazine is designed for SD40 pistols chambered in .40 S&W. It holds 50 rounds and combines a proprietary DuPont Zytel-based polymer body with a hybrid steel upper magazine tower. The magazine is made in the USA and backed by a lifetime guarantee against manufacturer’s defects.

Key Specifications

• The magazine is designed to fit Smith & Wesson SD40 .40 S&W pistols.
• The magazine provides a capacity of 50 rounds.
• The magazine uses a drum design.
• The magazine body is constructed from a proprietary DuPont Zytel-based polymer.
• The upper magazine tower features a hybrid steel construction.
• The follower is injection molded.
• The magazine spring is formed from heat-treated stainless steel.
• The magazine is finished in black.
• The magazine is made in the USA.
• The listed weight is 1.75 pounds.

With its high-capacity drum format and clearly specified construction, this ProMag magazine offers an equipment option for compatible SD40 users who want a substantial ammunition supply in a single magazine. Its polymer body, steel tower, and stainless steel spring provide a purpose-built design for range use and storage.