Promag Smith & Wesson 5900 9Mm Handgun Mag Black Polymer 50/Rd
$80.11
The Promag Smith & Wesson 5900 9mm handgun magazine brings modern manufacturing to a classic duty gun. This 50-round drum magazine pairs traditional steel construction with injection-molded polymer housings to deliver reliable high-capacity ammunition storage for competitive shooters, training sessions, and range days. Built to perform and built to last, it's the kind of magazine that earns its place in your kit.
Promag engineered this drum with a hybrid approach: the magazine body combines heat-treated high-carbon steel components with mil-spec polymer construction, giving you the durability of steel where it counts most and the weight savings of modern materials elsewhere. The upper tower features a full-length steel internal insert that's stamped and welded just like factory magazines, while the follower is injection-molded to precise tolerances. A heat-treated stainless steel spring rounds out the assembly, designed to cycle reliably through high-round-count sessions.
Because it's built for the S&W 5900 series platform, you get compatibility with one of the most common duty and training pistols in America. Whether you're running drills at the range or stocking up for serious practice, the 50-round capacity means fewer magazine changes and more time downrange. Promag backs every magazine with a lifetime guarantee against manufacturer defects, and it's made in the USA.
Key Features
- 50-round capacity for high-volume shooting sessions
- Heat-treated high-carbon steel body with proprietary DuPont Zytel-based polymer housing
- Full-length steel internal insert for durability and reliability
- Heat-treated stainless steel spring for consistent feeding
- Injection-molded follower for precision tolerances
- Lifetime manufacturer defect warranty
- Made in USA
Specifications
| Brand | Promag |
| Firearm Compatibility | Smith & Wesson 5900 Series |
| Caliber | 9mm |
| Capacity | 50 rounds |
| Color | Black |
| Material | Heat-treated high-carbon steel with DuPont Zytel-based polymer |
| Made In | USA |
Frequently Asked Questions
Will this 50-round drum magazine work with my Smith & Wesson 5900 series pistol?
Yes, this magazine is specifically designed for S&W 5900 series handguns and features full-length steel internal inserts that match factory magazine construction for reliable feeding and function.
What material is the magazine body made from?
The drum housing uses a proprietary DuPont Zytel-based polymer compound paired with heat-treated high-carbon steel components. The upper tower has a full-length stamped and welded steel internal insert, and the spring is heat-treated stainless steel.
Is this magazine covered by any warranty?
Yes, every Promag magazine is backed by a lifetime guarantee against manufacturer defects.
Is this magazine made in the USA?
Yes, this magazine is manufactured in the USA.
