ProMag SMI31 S&W Shield .40 S&W 9-Round Magazine
Reliable 9-round steel magazine for Smith & Wesson M&P Shield in .40 S&W. Heat-treated blued steel construction with precision-wound springs. Made in the USA with lifetime warranty.
Fits: Smith & Wesson M&P Shield
ProMag SMI31 Magazine for S&W Shield .40 S&W
This is a purpose-built replacement or spare magazine for the Smith & Wesson M&P Shield in .40 S&W caliber. It delivers the capacity and reliability you need for training, competition, or defensive carry.
Construction and Materials
Durable Steel Design
- Heat-treated blued steel construction for corrosion resistance and longevity
- Injection-molded magazine follower ensures smooth, reliable feeding
- Precision-wound springs formed from chrome silicon wire for consistent performance
Long-Term Reliability
- ProMag's proprietary anti-fatigue spring design allows the magazine to remain loaded and ready for up to six years without concern
- Each magazine undergoes rigorous quality checks throughout the assembly process
- Made in the USA to exacting standards
Specifications
- Capacity: 9 rounds
- Caliber: .40 S&W
- Finish: Blued steel
- Compatibility: Smith & Wesson M&P Shield
- Warranty: Lifetime against manufacturer defects
Why Choose This Magazine
Whether you're looking for a spare magazine for your Shield or need a reliable backup, this ProMag delivers proven performance. The heat-treated steel construction and precision engineering ensure consistent feeding and durability through thousands of rounds. Back it up with a lifetime warranty—that's confidence in the product.
Features
- heat-treated chrome silicon wire spring
- manufactured & assembled in the u.s.a.
- easy loading
- rugged construction
