The ProMag SMIA18 delivers reliable feeding and extended capacity for Smith & Wesson SD series pistols chambered in 40 S&W. This aftermarket magazine provides shooters with additional rounds compared to factory options while maintaining consistent performance across training and defensive applications.
What Makes This Different
Constructed from heat-treated blued steel, the SMIA18 offers enhanced durability compared to polymer alternatives. The magazine body features precision-formed feed lips that maintain proper cartridge presentation under repeated cycling. Heat treatment processes ensure the steel construction resists deformation under spring pressure, extending service life beyond standard replacement intervals.Key Features
- 15-round capacity increases ammunition availability over standard magazines
- Heat-treated blued steel construction resists corrosion and wear
- Compatible with Smith & Wesson SD9 and SD40 pistols (excludes VE variants)
- Precision-formed feed lips ensure consistent cartridge presentation
- High-tensile spring maintains reliable feeding pressure
- Removable floorplate allows for cleaning and maintenance
- Anti-tilt follower design prevents ammunition binding during cycling
Technical Specs
- Capacity: 15 rounds
- Caliber: 40 Smith & Wesson
- Material: Heat-treated blued steel body
- Compatibility: Smith & Wesson SD series (excludes VE variants)
- Follower: Anti-tilt polymer construction
- Spring: High-carbon steel, heat-treated
- Floorplate: Removable polymer with steel insert
- Manufacturer: ProMag Industries
- UPC: 708279013379
