
Availability: In Stock
The ProMag Ruger Security-9 9mm 50-round drum magazine is a high-capacity feed solution for shooters who want serious ammunition storage in a compact platform. Built in the USA, this drum magazine pairs reliability with the compact handling of the Ruger Security-9 pistol, making it a solid choice for range days, defensive training, or competitive shooting where extended capacity matters.
ProMag engineered this drum with a proprietary dupont Zytel-based polymer body and blue steel upper tower, designed to withstand hard use without unnecessary weight. The magazine follower is injection-molded for consistent feeding, while the spring is formed from heat-treated stainless steel — the same precision-wound, chrome-silicon wire used across ProMag's lineup. Assembly is checked and double-checked at every step to ensure the same reliable performance from magazine to magazine.
If you run a Security-9 and want to stretch trigger time between reloads, or you're setting up for serious training blocks, a 50-round drum gives you the capacity to focus on technique rather than magazine changes. The black polymer finish is durable and low-profile. ProMag backs every magazine with a lifetime guarantee against manufacturer's defects — a sign of confidence in their build process.
| Caliber | 9mm |
| Capacity | 50 rounds |
| Fit | Ruger Security-9 |
| Body Material | Proprietary dupont Zytel-based polymer |
| Upper Tower | Blue steel |
| Spring Material | Heat-treated stainless steel |
| Follower | Injection-molded |
| Finish | Black |
| Manufactured | USA |
| Warranty | Lifetime against manufacturer's defects |
Yes — this ProMag drum is designed specifically to fit the Ruger Security-9 in 9mm. Always test feed at the range to verify reliable feeding with your particular gun and ammunition.
The body is constructed from a proprietary dupont Zytel-based polymer, with a blue steel upper tower. The spring is heat-treated stainless steel, and the follower is injection-molded for consistent feeding.
Yes, ProMag manufactures this magazine in the United States and backs it with a lifetime guarantee against manufacturer's defects.
This is a 50-round drum magazine best suited for range training, practice, and competitions. For self-defense or duty carry, consult your firearms instructor or agency guidelines on appropriate magazine capacity and reliability testing for defensive use.

SKU: 121686635 • Width: 7in • Height: 3.5in • Depth: 14.5in • Weight: 1.75oz





Availability: In Stock
The ProMag Ruger Security-9 9mm 50-round drum magazine is a high-capacity feed solution for shooters who want serious ammunition storage in a compact platform. Built in the USA, this drum magazine pairs reliability with the compact handling of the Ruger Security-9 pistol, making it a solid choice for range days, defensive training, or competitive shooting where extended capacity matters.
ProMag engineered this drum with a proprietary dupont Zytel-based polymer body and blue steel upper tower, designed to withstand hard use without unnecessary weight. The magazine follower is injection-molded for consistent feeding, while the spring is formed from heat-treated stainless steel — the same precision-wound, chrome-silicon wire used across ProMag's lineup. Assembly is checked and double-checked at every step to ensure the same reliable performance from magazine to magazine.
If you run a Security-9 and want to stretch trigger time between reloads, or you're setting up for serious training blocks, a 50-round drum gives you the capacity to focus on technique rather than magazine changes. The black polymer finish is durable and low-profile. ProMag backs every magazine with a lifetime guarantee against manufacturer's defects — a sign of confidence in their build process.
| Caliber | 9mm |
| Capacity | 50 rounds |
| Fit | Ruger Security-9 |
| Body Material | Proprietary dupont Zytel-based polymer |
| Upper Tower | Blue steel |
| Spring Material | Heat-treated stainless steel |
| Follower | Injection-molded |
| Finish | Black |
| Manufactured | USA |
| Warranty | Lifetime against manufacturer's defects |
Yes — this ProMag drum is designed specifically to fit the Ruger Security-9 in 9mm. Always test feed at the range to verify reliable feeding with your particular gun and ammunition.
The body is constructed from a proprietary dupont Zytel-based polymer, with a blue steel upper tower. The spring is heat-treated stainless steel, and the follower is injection-molded for consistent feeding.
Yes, ProMag manufactures this magazine in the United States and backs it with a lifetime guarantee against manufacturer's defects.
This is a 50-round drum magazine best suited for range training, practice, and competitions. For self-defense or duty carry, consult your firearms instructor or agency guidelines on appropriate magazine capacity and reliability testing for defensive use.
SKU: 121686635 • Width: 7in • Height: 3.5in • Depth: 14.5in • Weight: 1.75oz
