ProMag SMIA11 15-Round Blued Steel Magazine (.40 S&W)

The ProMag SMIA11 is a replacement magazine designed for the Smith & Wesson M&P series chambered in .40 S&W. It is a double-stack, detachable magazine with a 15-round capacity constructed from heat-treated blued steel and polymer components. The spring is wound from chrome-silicon wire and the follower and base plate use a durable polymer to promote consistent feeding. Made in the United States, this magazine serves as a practical spare or replacement for range use, duty gear, or everyday carry kits.

Key Specifications

• The capacity is 15 rounds, providing standard double-stack capacity for compatible pistols.
• Designed for caliber .40 S&W and fits Smith & Wesson M&P models listed for that cartridge.
• Constructed from heat-treated blued steel for the magazine body.
• Uses a chrome-silicon wound spring that is heat-treated for strength and longevity.
• The follower and base plate are molded from black polymer for consistent feeding and durability.
• Quantity per package is 1 magazine.
• Manufacturer-listed overall dimensions are 1.60 x 2.90 x 9.15 inches.
• Manufactured in the United States and backed by a lifetime guarantee against manufacturer defects.

Whether kept as a spare for the range or added to a daily kit, the ProMag SMIA11 offers straightforward capacity and reliable construction for S&W M&P owners. Its blued-steel body paired with polymer components delivers a practical balance of durability and dependable feeding for routine use.