The ProMag DRM-A126 is a high-capacity 50-round drum replacement magazine engineered specifically for the Smith & Wesson M&P Shield .40 S&W pistol. Combining maximum firepower with an ergonomic, compact drum layout, this magazine's main housing is constructed from a lightweight yet highly impact-resistant proprietary polymer. It features over-molded steel feed lips for a rigid, secure fit and optimal feed ramp geometry. Inside, a precision injection-molded follower pairs seamlessly with a heat-treated stainless steel wire for a smooth, reliable ammunition delivery during rapid fire. Excellent for extended range time, plinking, or tactical applications, this drum is proudly made in the USA.

• 50-Round Drum Magazine.
• Fits Smith & Wesson M&P Shield .40 S&W Pistols.
• Proprietary DuPont Zytel Based Polymer.
• Injection Molded Magazine Follower.
• Magazine Spring Formed from Heat Treated Stainless Steel.