
Availability: In Stock
The ProMag S&W SD9 9mm 50-round drum magazine gives you serious capacity without changing guns. Built around a rigid polymer housing reinforced with steel internals, this high-capacity pistol magazine feeds reliable 9mm ammunition to your S&W SD9. The 50-round drum design lets you spend more time at the range or on the line and less time reloading—a genuine advantage for shooters who value efficiency and extended trigger time.
ProMag engineered this drum with a hybrid construction approach: the housing uses a proprietary DuPont Zytel-based polymer for durability and lightweight handling, while critical internal components—the upper tower and feed lips—are precision-stamped and welded steel, matching the design philosophy of factory magazines. The follower is injection molded for smooth operation, and the magazine spring is heat-treated stainless steel, built to cycle thousands of rounds without losing tension or reliability.
Made in the USA, this drum magazine carries a lifetime manufacturer's defect warranty, so you can trust it to perform when it matters. Whether you're training, competing, or running drills, the 50-round capacity and proven materials give you a magazine that keeps pace with your shooting intensity.
| Caliber | 9mm |
| Capacity | 50 rounds |
| Type | Drum magazine |
| Platform | S&W SD9 |
| Housing Material | DuPont Zytel-based polymer |
| Internal Construction | Stamped and welded heat-treated steel |
| Spring | Heat-treated stainless steel |
| Finish | Black |
| Country of Origin | Made in USA |
Yes, this ProMag drum is designed specifically for the S&W SD9 platform.
ProMag combines a reinforced steel upper tower and feed lips—stamped and welded like factory magazines—with a heat-treated stainless steel spring and injection-molded follower. This hybrid approach delivers consistent performance over thousands of rounds.
Yes, ProMag backs this magazine with a lifetime warranty against manufacturer defects.
The ProMag S&W SD9 50-round drum magazine is made in the USA.

SKU: 115670777 • Width: 7in • Height: 3in • Depth: 14.55in • Weight: 1.75oz





Availability: In Stock
The ProMag S&W SD9 9mm 50-round drum magazine gives you serious capacity without changing guns. Built around a rigid polymer housing reinforced with steel internals, this high-capacity pistol magazine feeds reliable 9mm ammunition to your S&W SD9. The 50-round drum design lets you spend more time at the range or on the line and less time reloading—a genuine advantage for shooters who value efficiency and extended trigger time.
ProMag engineered this drum with a hybrid construction approach: the housing uses a proprietary DuPont Zytel-based polymer for durability and lightweight handling, while critical internal components—the upper tower and feed lips—are precision-stamped and welded steel, matching the design philosophy of factory magazines. The follower is injection molded for smooth operation, and the magazine spring is heat-treated stainless steel, built to cycle thousands of rounds without losing tension or reliability.
Made in the USA, this drum magazine carries a lifetime manufacturer's defect warranty, so you can trust it to perform when it matters. Whether you're training, competing, or running drills, the 50-round capacity and proven materials give you a magazine that keeps pace with your shooting intensity.
| Caliber | 9mm |
| Capacity | 50 rounds |
| Type | Drum magazine |
| Platform | S&W SD9 |
| Housing Material | DuPont Zytel-based polymer |
| Internal Construction | Stamped and welded heat-treated steel |
| Spring | Heat-treated stainless steel |
| Finish | Black |
| Country of Origin | Made in USA |
Yes, this ProMag drum is designed specifically for the S&W SD9 platform.
ProMag combines a reinforced steel upper tower and feed lips—stamped and welded like factory magazines—with a heat-treated stainless steel spring and injection-molded follower. This hybrid approach delivers consistent performance over thousands of rounds.
Yes, ProMag backs this magazine with a lifetime warranty against manufacturer defects.
The ProMag S&W SD9 50-round drum magazine is made in the USA.
SKU: 115670777 • Width: 7in • Height: 3in • Depth: 14.55in • Weight: 1.75oz
