ProMag SMIA18 15rd .40 S&W Magazine (Fits S&W SD)

The ProMag SMIA18 is a 15-round detachable replacement magazine designed for .40 S&W S&W SD pistols. It is constructed from heat-treated steel and features an injection-molded magazine follower and a spring formed from chrome silicone wire. This magazine is made in the USA and serves as a spare or replacement for compatible S&W SD models. Note that it will not function with VE variant pistols.

Key Specifications

• Brand: ProMag.
• Model: SMIA18 Standard.
• Caliber/Gauge: .40 S&W.
• Capacity: 15rd.
• Material: Steel.
• Product type: Detachable magazine.
• Compatible with: S&W SD pistols.
• Compatibility note: Not compatible with VE variants.
• Country of manufacture: Made in the USA.
• Weight listed as .25 in source; unit not specified.

Built with durable steel components and a molded follower, the SMIA18 provides a reliable spare magazine option for S&W SD owners. Its straightforward design and proven materials make it practical for range use or as a service spare, offering value through simple, dependable construction.