The ProMag SMI40 is a 10-round replacement magazine designed for the Smith & Wesson Shield EZ 9mm pistol. It features a heat-treated steel body with a black oxide finish, an injection-molded follower, and a heat-treated chrome silicone wire spring. Manufactured in the USA, the magazine is intended for everyday carry and range use with the Shield EZ platform.
Key Specifications
- Chambering is for 9mm.
- The magazine capacity is 10 rounds.
- Designed to fit the Smith & Wesson Shield EZ 9mm pistol.
- Does not fit Smith & Wesson M&P 9mm, M&P Shield 9mm, or M&P Shield Plus 9mm pistols.
- The magazine body is constructed of heat-treated steel.
- Finish is a black oxide coating on the steel body.
- The follower is injection-molded.
- The spring is formed from heat-treated chrome silicone wire.
- Made in the USA.
- Manufacturer model: ProMag SMI40.
For Shield EZ owners seeking a factory-style spare or replacement magazine, the ProMag SMI40 offers straightforward compatibility and durable construction. Its heat-treated components and practical design make it a reliable addition to an everyday carry or range kit.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.




