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

Description

The ProMag 50-round drum magazine is designed for use with Smith & Wesson SD40 pistols chambered in .40 S&W. It provides high-capacity feeding in a compact drum format and is built with a polymer body and a hybrid steel upper magazine tower for durability. Components include an injection-molded follower and a spring formed from heat-treated stainless steel. The magazine is made in the USA and intended for range, target, and recreational use where high-capacity magazines are permitted.

Key Specifications

• The magazine capacity is 50 rounds.
• The magazine is chambered for .40 S&W.
• The magazine is designed to fit Smith & Wesson SD40 pistols.
• The exterior finish color is black.
• The magazine body is constructed of a proprietary DuPont Zytel-based polymer.
• The upper magazine tower is a hybrid steel construction.
• The follower is injection molded.
• The magazine spring is formed from heat-treated stainless steel.
• The product is made in the USA.
• The manufacturer is ProMag.

This drum magazine offers a durable, high-capacity option for lawful range and recreational use where permitted. Its combination of a Zytel polymer body, steel upper tower, and heat-treated spring provides a balance of weight savings and reliable feeding. For users seeking extended capacity for target sessions or organized competitive formats that allow drum magazines, this ProMag unit delivers proven materials and construction without extras or embellishments.