The ProMag SMIA20 delivers extended capacity for Smith & Wesson SD series pistols, holding 32 rounds of 9mm Luger ammunition in a durable blued steel construction. This extended magazine transforms your SD9 or SD40 into a higher-capacity platform for competition shooting, range training, and tactical applications.
What Makes This Different
Unlike standard 16-round factory magazines, the SMIA20 more than doubles your ammunition capacity without requiring modifications to your firearm. The blued steel construction provides superior durability compared to polymer alternatives, while the extended length offers improved grip leverage during rapid fire sequences. ProMag's heat-treated spring maintains consistent tension across the full 32-round capacity.Key Features
- 32-round capacity doubles standard magazine ammunition load
- Blued carbon steel body resists corrosion and impact damage
- Heat-treated chrome silicon spring ensures reliable feeding
- Compatible with S&W SD9 and SD40 pistol platforms
- Anti-tilt follower prevents ammunition binding and misfeeds
- Removable floor plate allows complete disassembly for cleaning
- Witness holes provide visual ammunition count verification
Technical Specs
- Capacity: 32 rounds of 9mm Luger ammunition
- Material: Blued carbon steel body with polymer follower
- Compatibility: Smith & Wesson SD9 and SD40 pistols
- Spring: Heat-treated chrome silicon wire
- Overall length: Approximately 8.5 inches
- Floor plate: Removable polymer with lanyard loop
- Country of origin: United States
