ProMag FN Five-seveN 55rd Drum Magazine 5.7x28mm

This ProMag drum magazine provides high-capacity feeding for the FN Five-seveN USG in 5.7x28mm. It combines a Zytel-based polymer body with a blue steel upper magazine tower and an injection-molded follower. The magazine spring is formed from heat-treated stainless steel and the unit is made in the USA.

Key Specifications

• This magazine holds 55 rounds.
• Designed for 5.7x28mm cartridges.
• Compatible fit for FN Five-seveN USG pistols.
• Magazine body constructed of a proprietary DuPont Zytel-based polymer.
• The upper magazine tower is finished in blue steel.
• The follower is injection molded for consistent feeding.
• The magazine spring is formed from heat-treated stainless steel.
• Finish / color specified as Black.
• Overall dimensions listed as 3.40 x 6.60 x 16.40 (manufacturer data).
• Manufactured in the USA.

This drum magazine offers extended capacity and robust materials for sustained range sessions and organized practice. Its polymer construction with a steel tower and stainless spring emphasizes durability and consistent feeding for users who require larger-capacity magazines compatible with the FN Five-seveN platform.