Some of the plastic had some rigid ends but took a Exacto blade to it and smoothed it off.
It fits perfectly in the FN 509C Tactical and haven't seen anything to complain about functional wise.
Definitely will buy another.
Year after year, ProMag has increasingly become one of the leading manufacturers of firearms magazines in the world. Gun enthusiasts and law enforcement personnel have agreed, be it for recreational "plinking", competition shooting, or law enforcement, Promag is the source you can count on.
This 15 Round magazine for the compact FN 509 pistol in 9mm is constructed from heat-treated blued-steel, with a follower, lock-plate, and base-plate molded from a proprietary DuPont Zytel based black polymer; and using a spring wound from Chrome-silicon wire and heat-treated for strength and reliability. ProMag magazines include a lifetime guarantee, if you ever have a problem with their magazines; simply return them to ProMag for replacement.
Features and Specifications:
Caliber: 9x19mm
Capacity: 15 Rounds
Body Material: Heat Treated Blued Steel
Spring Material: Heat Treated Chrome-silicon Wire
Follower Material: DuPont Zytel Polymer
Follower Color: Black
Polymer Base Plate
Color: Black
Fits:
Compact FN 509 9mm Models
This 15 Round magazine for the compact FN 509 pistol in 9mm is constructed from heat-treated blued-steel, with a follower, lock-plate, and base-plate molded from a proprietary DuPont Zytel based black polymer; and using a spring wound from Chrome-silicon wire and heat-treated for strength and reliability. ProMag magazines include a lifetime guarantee, if you ever have a problem with their magazines; simply return them to ProMag for replacement.
Features and Specifications:
Caliber: 9x19mm
Capacity: 15 Rounds
Body Material: Heat Treated Blued Steel
Spring Material: Heat Treated Chrome-silicon Wire
Follower Material: DuPont Zytel Polymer
Follower Color: Black
Polymer Base Plate
Color: Black
Fits:
Compact FN 509 9mm Models
Fits like a glove
November 3, 2025