ProMag S&W 908/3913/3914 Magazine — 9mm, 8-Round

The ProMag replacement magazine is a single-stack 8-round magazine designed to fit Smith & Wesson 908, 3913, 3914, and 3953 series 9mm pistols. It pairs a heat-treated steel body with polymer internal components and a chrome-silicon spring for consistent feeding. The magazine is produced in the United States and intended for range, carry, and general use where compatible.

Key Specifications

• Compatible with Smith & Wesson 908, 3913, 3914, and 3953 series pistols.
• Designed for 9mm cartridges.
• Holds 8 rounds in a single-stack configuration.
• Magazine body constructed from heat-treated steel.
• Follower, lock plate, and base plate made from a Zytel-based polymer.
• Spring formed from chrome-silicon wire and heat-treated for strength.
• Finish is reported inconsistently in source data as blued or black-oxide.
• Listed weight is 0.2 (unit not specified) in the provided attributes.
• Manufactured in the USA.

Built to replicate factory-style dimensions and function, this ProMag magazine provides a serviceable replacement or spare for compatible Smith & Wesson compact pistols. Its heat-treated steel body and heat-treated spring are specified for durability and consistent operation, while polymer internal parts reduce friction and wear. The magazine is a practical option for shooters seeking a reliable, period-correct spare for range and everyday carry applications.