Promag S&W SD40 Handgun Magazine 40 S&W 25/rd

The Promag S&W SD40 Handgun Magazine 40 S&W 25-round capacity is a high-capacity aftermarket magazine designed specifically for the Smith & Wesson SD40 VE pistol in .40 S&W caliber. This magazine extends the standard factory capacity, giving operators and range shooters significantly more rounds on board without requiring additional reload cycles during training or defensive scenarios. Built to Promag Mfg.'s manufacturing standards, it delivers reliable feeding in a platform known for its straightforward operating system and duty-level ergonomics.

Construction centers on a heat-treated steel magazine body with black oxide finish, providing corrosion resistance and durability in field conditions. The injection-molded follower ensures consistent round stacking and feeding geometry, while the heat-treated chrome silicone wire spring maintains tension across the full loading cycle. This material combination is standard across proven duty magazines and handles the pressure demands of .40 S&W without degradation. The magazine measures 4.75 inches in height and weighs 0.47 pounds when loaded, maintaining balance and draw speed from concealment or duty carry positions.

This magazine suits law enforcement officers, armed security personnel, and defensive shooters who prioritize extended capacity for tactical training or operational readiness. It is particularly valuable for high-round-count courses or multi-stage competitions where reload frequency directly impacts stage performance. The SD40 platform sees service among departments and training facilities, making aftermarket capacity solutions a practical logistics asset. Shooters evaluating extended magazines appreciate the ability to standardize on a single higher-capacity platform rather than rotating between standard and extended-capacity options.

Note: This magazine is confirmed compatible with the Smith & Wesson SD40 standard model and will not function in the SD40 VE (Value Edition) variant. Verify your platform version before purchase. Manufactured in the United States.