Promag115768659
Promag Sig P228 9mm Drum 50rd Bk$80.26
Availability: In Stock
Current Stock: Out of stock
The Pro Mag Sig Pro 9mm 50-round drum magazine is a high-capacity option built for shooters who want extended trigger time at the range or competition stage without frequent reloads. If you run a Sig Sauer Sig Pro 9mm and need more rounds on tap—whether for practice, training, or sport shooting—this drum magazine holds double the typical single-stack capacity in a surprisingly compact form factor.
Construction matters in a magazine, and Pro Mag engineered this one with a proprietary DuPont Zytel polymer body paired to a blue steel upper magazine tower. That combination balances weight and durability for reliable feeding across extended shooting sessions. The injection-molded follower works in concert with a heat-treated stainless steel spring to cycle rounds consistently. Made in the USA, this drum is built to handle the demands of active shooters who push their gear hard.
50 rounds is a lot of ammunition to stage, which means fewer magazine swaps and more focus on what matters—your shot placement and fundamentals. Drum magazines aren't for everyone; they're bulkier than single-stack mags and take practice to load smoothly. But if you're stacking rounds for a training day, running a competition format that allows them, or simply want the option to shoot longer strings without interruption, this Pro Mag delivers.
| Brand | Pro Mag |
| Caliber | 9mm |
| Capacity | 50 rounds |
| Type | Drum magazine |
| Fits | Sig Sauer Sig Pro 9mm |
| Body Material | DuPont Zytel polymer |
| Spring Material | Heat-treated stainless steel |
| Upper Tower | Blue steel |
| Follower | Injection-molded polymer |
| Country of Origin | USA |
| Color | Black |
Yes. This Pro Mag drum is engineered specifically to fit the Sig Sauer Sig Pro 9mm platform. Always test any magazine with your pistol before relying on it in a critical application.
A drum holds 50 rounds versus the typical 15–17 in a single-stack mag, so you can shoot longer strings before reloading. This is useful for range training sessions, competition, or high-volume practice days. The tradeoff is bulk and weight, and drum mags require a slightly different loading technique.
The body is made from a proprietary DuPont Zytel polymer, which offers impact resistance and durability. The upper tower is blue steel for added strength. The spring is heat-treated stainless steel, and the follower is injection-molded polymer.
Yes, this Pro Mag drum magazine is manufactured in the United States.
SKU: 115725265 • Width: 7in • Height: 4in • Depth: 14.5in • Weight: 1.69oz
Availability: In Stock
Current Stock: Out of stock
The Pro Mag Sig Pro 9mm 50-round drum magazine is a high-capacity option built for shooters who want extended trigger time at the range or competition stage without frequent reloads. If you run a Sig Sauer Sig Pro 9mm and need more rounds on tap—whether for practice, training, or sport shooting—this drum magazine holds double the typical single-stack capacity in a surprisingly compact form factor.
Construction matters in a magazine, and Pro Mag engineered this one with a proprietary DuPont Zytel polymer body paired to a blue steel upper magazine tower. That combination balances weight and durability for reliable feeding across extended shooting sessions. The injection-molded follower works in concert with a heat-treated stainless steel spring to cycle rounds consistently. Made in the USA, this drum is built to handle the demands of active shooters who push their gear hard.
50 rounds is a lot of ammunition to stage, which means fewer magazine swaps and more focus on what matters—your shot placement and fundamentals. Drum magazines aren't for everyone; they're bulkier than single-stack mags and take practice to load smoothly. But if you're stacking rounds for a training day, running a competition format that allows them, or simply want the option to shoot longer strings without interruption, this Pro Mag delivers.
| Brand | Pro Mag |
| Caliber | 9mm |
| Capacity | 50 rounds |
| Type | Drum magazine |
| Fits | Sig Sauer Sig Pro 9mm |
| Body Material | DuPont Zytel polymer |
| Spring Material | Heat-treated stainless steel |
| Upper Tower | Blue steel |
| Follower | Injection-molded polymer |
| Country of Origin | USA |
| Color | Black |
Yes. This Pro Mag drum is engineered specifically to fit the Sig Sauer Sig Pro 9mm platform. Always test any magazine with your pistol before relying on it in a critical application.
A drum holds 50 rounds versus the typical 15–17 in a single-stack mag, so you can shoot longer strings before reloading. This is useful for range training sessions, competition, or high-volume practice days. The tradeoff is bulk and weight, and drum mags require a slightly different loading technique.
The body is made from a proprietary DuPont Zytel polymer, which offers impact resistance and durability. The upper tower is blue steel for added strength. The spring is heat-treated stainless steel, and the follower is injection-molded polymer.
Yes, this Pro Mag drum magazine is manufactured in the United States.
SKU: 115725265 • Width: 7in • Height: 4in • Depth: 14.5in • Weight: 1.69oz