The ProMag SMIA23 delivers extended capacity for Smith & Wesson M&P pistols with a reliable 20-round design that maintains the firearm's balance and handling characteristics. This aftermarket magazine provides shooters with increased ammunition capacity while maintaining compatibility with standard M&P holsters and accessories.
What Makes This Different
The SMIA23 features heat-treated blue steel construction that resists corrosion and provides consistent feeding under rapid fire conditions. Unlike polymer alternatives, the steel body maintains dimensional stability across temperature extremes from -20°F to 180°F. The extended baseplate adds minimal bulk while providing a secure grip extension for enhanced control during reloads.Key Features
- 20-round capacity increases firepower by 67% over standard M&P magazines
- Heat-treated blue steel body construction for maximum durability
- Compatible with all Smith & Wesson M&P 9mm pistol variants
- Anti-tilt follower design prevents feeding malfunctions
- Extended baseplate provides improved grip surface during reloads
- Chrome silicon spring rated for over 10,000 compression cycles
- Fits standard M&P holsters without modification
Technical Specs
- Capacity: 20 rounds of 9mm Luger
- Body Material: Heat-treated blue steel
- Spring: Chrome silicon wire
- Follower: Anti-tilt polymer design
- Overall Length: Approximately 6.2 inches
- Weight: 4.1 ounces empty
- Compatibility: Smith & Wesson M&P 9mm pistols
- Finish: Blued steel with corrosion resistance
