This ProMag SMI28 is a replacement or spare magazine designed for the Smith & Wesson M&P Shield in 9mm Luger. It is described by the manufacturer as a 10-round magazine constructed from heat-treated blued-steel components with an injection-molded TECHNAPOLYMER follower and a heat-treated chrome silicon anti-fatigue spring. The product is listed as made in the USA and is offered with a lifetime warranty against manufacturing defects.
Key Specifications
- The magazine capacity is 10 rounds.
- The caliber is listed as 9mm Luger.
- The body material is noted as heat-treated blued steel.
- The finish is specified as blued.
- The magazine fit is listed for the S&W M&P Shield.
- The follower is an injection-molded TECHNAPOLYMER component.
- The spring is a heat-treated chrome silicon anti-fatigue spring.
- The manufacturer model designation is SMI28.
- Country of origin is indicated as USA.
- The product carries a lifetime warranty against manufacturer defects.
Built with heat-treated steel components and an anti-fatigue spring, this magazine is intended as a durable spare or replacement for range use and everyday-carry setups that require OEM-compatible magazines. Its TECHNAPOLYMER follower and chrome silicon spring are described to support long-term loaded storage. The combination of blued-steel construction and a manufacturer-backed lifetime warranty reflects the product’s focus on durability and service life.
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.
