ProMag SMIA12 17-Round 9mm Magazine for S&W M&P - Blued Steel

The ProMag SMIA12 extends your Smith & Wesson M&P's capacity to 17 rounds of 9mm Luger ammunition, providing additional firepower when it matters most. This aftermarket magazine features blued steel construction for enhanced durability compared to polymer alternatives.

What Makes This Different

Unlike standard capacity magazines, the SMIA12 adds 7 extra rounds to your M&P's firepower without compromising reliability. The blued steel body resists wear from repeated loading cycles and provides consistent spring tension over thousands of rounds. Heat-treated steel construction maintains dimensional stability under stress, ensuring reliable feeding in demanding conditions.

Key Features

• 17-round capacity increases firepower by 7 rounds over standard M&P magazines
• Blued steel construction offers superior durability versus polymer bodies
• Heat-treated steel maintains dimensional accuracy under repeated use
• Chrome silicon spring provides consistent tension and reliable feeding
• Anti-tilt follower design prevents jamming and ensures smooth operation
• Compatible with all Smith & Wesson M&P pistols chambered in 9mm Luger
• Removable floorplate allows for easy cleaning and maintenance

This extended capacity magazine performs reliably across various shooting disciplines, from competitive shooting where every round counts to tactical training scenarios requiring sustained fire capability. The steel construction withstands the rigors of frequent range sessions and maintains feeding reliability in adverse conditions. Law enforcement and civilian shooters benefit from the additional ammunition capacity during qualification courses and defensive training.

Technical Specs

• Capacity: 17 rounds of 9mm Luger ammunition
• Construction: Blued carbon steel body with steel internal components
• Compatibility: Smith & Wesson M&P pistols in 9mm Luger
• Spring: Chrome silicon wire for consistent tension
• Follower: Anti-tilt polymer design
• Floorplate: Removable steel with lanyard loop
• Finish: Traditional blued steel for corrosion resistance
• Manufacturer: ProMag Industries

The ProMag SMIA12 delivers proven aftermarket magazine performance for M&P owners seeking increased capacity without sacrificing reliability. Steel construction and proven feeding geometry make this magazine a practical upgrade for training, competition, and duty use.