Availability: In Stock
The ProMag SMI33 is a reliable 10-round magazine built for shooters who carry or compete with the S&W SD in .40 S&W. If you need a dependable spare magazine or a cost-effective backup to your factory option, this blued steel magazine delivers straightforward functionality without unnecessary complexity. It's the kind of no-nonsense mag that belongs in your range bag or duty belt.
ProMag has been making aftermarket magazines for decades, and the SMI33 reflects that experience: solid construction, consistent feeding, and the durability shooters expect when rounds downrange matter. Whether you're logging range time, training, or relying on your SD for everyday carry, having extra capacity on hand keeps you shooting without interruption.
Note that this magazine is engineered specifically for the S&W SD platform and does not fit the VE variant—verify your firearm model before ordering. The blued steel finish resists corrosion and blends with most SD configurations, and the 10-round capacity balances practical everyday carry with the performance you need in the field.
| Brand | ProMag |
| Model | SMI33 |
| Caliber | .40 S&W |
| Capacity | 10 rounds |
| Material | Blued Steel |
| Firearm Compatibility | S&W SD (excludes VE variant) |
| Magazine Type | Standard |
The SMI33 is designed for the S&W SD in .40 S&W. However, it does not fit the VE variant of the SD platform. Confirm your specific SD model before purchase.
The ProMag SMI33 holds 10 rounds of .40 S&W ammunition.
The SMI33 features blued steel construction, which offers corrosion resistance and a classic appearance that matches most S&W SD finishes.
Yes. The SMI33 is a standard aftermarket magazine built to work alongside factory S&W SD magazines and will fit compatible holsters and magazine carriers.
SKU: 115715351 • Width: 2.7in • Height: 1.4in • Depth: 9.1in • Weight: 0.25oz
Availability: In Stock
The ProMag SMI33 is a reliable 10-round magazine built for shooters who carry or compete with the S&W SD in .40 S&W. If you need a dependable spare magazine or a cost-effective backup to your factory option, this blued steel magazine delivers straightforward functionality without unnecessary complexity. It's the kind of no-nonsense mag that belongs in your range bag or duty belt.
ProMag has been making aftermarket magazines for decades, and the SMI33 reflects that experience: solid construction, consistent feeding, and the durability shooters expect when rounds downrange matter. Whether you're logging range time, training, or relying on your SD for everyday carry, having extra capacity on hand keeps you shooting without interruption.
Note that this magazine is engineered specifically for the S&W SD platform and does not fit the VE variant—verify your firearm model before ordering. The blued steel finish resists corrosion and blends with most SD configurations, and the 10-round capacity balances practical everyday carry with the performance you need in the field.
| Brand | ProMag |
| Model | SMI33 |
| Caliber | .40 S&W |
| Capacity | 10 rounds |
| Material | Blued Steel |
| Firearm Compatibility | S&W SD (excludes VE variant) |
| Magazine Type | Standard |
The SMI33 is designed for the S&W SD in .40 S&W. However, it does not fit the VE variant of the SD platform. Confirm your specific SD model before purchase.
The ProMag SMI33 holds 10 rounds of .40 S&W ammunition.
The SMI33 features blued steel construction, which offers corrosion resistance and a classic appearance that matches most S&W SD finishes.
Yes. The SMI33 is a standard aftermarket magazine built to work alongside factory S&W SD magazines and will fit compatible holsters and magazine carriers.
SKU: 115715351 • Width: 2.7in • Height: 1.4in • Depth: 9.1in • Weight: 0.25oz