The Promag FN Five-seveN 55-round drum magazine gives you the extended capacity you're after when shooting the FN Five-seveN USG in 5.7x28mm. Whether you're running drills at the range or want serious reserve firepower in a compact platform, this drum magazine holds more than triple a standard pistol mag—keeping you in the fight longer between reloads. Built in the USA with a blend of traditional metalworking and modern polymer engineering, it's made to be reliable and durable.

Promag backs their magazine design with a lifetime guarantee against manufacturer's defects, giving you peace of mind that you're investing in a magazine built to last. The drum uses a proprietary DuPont Zytel-based polymer body for weight savings and durability, paired with a heat-treated stainless steel spring and blue steel upper tower for reliability under repeated use. The injection-molded follower ensures smooth, consistent feeding cycle after cycle.

If you shoot the Five-seveN platform regularly or want to maximize capacity without changing guns, this 55-round drum is a practical upgrade from single-stack mags. It's straightforward to load and unload, and the compact pistol platform means even a large-capacity drum doesn't add significant bulk compared to full-size rifle alternatives.

Key Features

• 55-round capacity for extended shooting sessions
• Proprietary DuPont Zytel polymer body for weight and durability
• Heat-treated stainless steel spring for reliable feeding
• Blue steel upper magazine tower for added strength
• Injection-molded follower for consistent round stacking
• Made in USA
• Backed by lifetime manufacturer defect guarantee

Specifications

Firearm Compatibility	FN Five-seveN USG (5.7x28mm)
Capacity	55 rounds
Type	Drum magazine
Body Material	DuPont Zytel-based polymer
Spring Material	Heat-treated stainless steel
Upper Tower	Blue steel
Follower	Injection-molded polymer
Manufactured	USA
Warranty	Lifetime against manufacturer defects

Frequently Asked Questions

What FN pistol does this drum magazine fit?

This Promag drum magazine is designed specifically for the FN Five-seveN USG in 5.7x28mm caliber.

How many rounds does the Promag FN Five-seveN drum hold?

The drum magazine holds 55 rounds, providing significantly extended capacity compared to standard Five-seveN magazines.

Is this magazine made in the USA?

Yes, the Promag FN Five-seveN 55-round drum magazine is manufactured in the USA using both traditional metal fabrication and precision injection-molded polymer construction.

What warranty does Promag offer on this magazine?

Every Promag magazine is backed by a lifetime guarantee against manufacturer's defects.