- 17-round magazine
- Fits FN 509 9mm pistol
- Magazine body constructed of heat-treated steel with black oxide finish
- Injection-molded magazine follower
- Magazine spring formed from heat-treated chrome silicone wire
The ProMag FN 509 9mm is a 17-round magazine, designed utilizing traditional stamping and constructed of heat-treated steel with a black oxide finish. The modern injection-molded magazine follower provides a consistent cartridge alignment. In addition, the spring is precision wound using heat-treated chrome silicon wire. You are assured of the ProMag magazine’s continuing reliability.
