ProMag SMI33 S&W SD .40 S&W 10-Round Magazine

The ProMag SMI33 is a detachable 10-round magazine designed for S&W SD models chambered in .40 S&W. Its heat-treated steel construction is paired with an injection-molded follower and a chrome-silicon wire spring. This magazine is not compatible with S&W SD VE variants.

Key Specifications

• The compatible firearm family is S&W SD.
• The chambering is .40 S&W.
• The magazine capacity is 10 rounds.
• The magazine is detachable.
• The body is constructed from heat-treated steel.
• The finish is described as blued steel.
• The follower is injection molded.
• The spring is formed from chrome-silicon wire.
• This model is not compatible with SD VE variants.
• The listed weight is 0.265 pounds.

With its steel construction, 10-round capacity, and defined S&W SD fit, the ProMag SMI33 provides a practical spare or replacement magazine for compatible .40 S&W setups. Its straightforward design supports organized range equipment and everyday maintenance needs.