ProMag FN 509 9mm 20-Round Blued Steel Magazine

This is an aftermarket 20-round 9mm FN 509 magazine from ProMag.

The ProMag FN 509 9mm 20-round magazine is an affordable aftermarket extended magazine trusted by home defenders and target shooters alike.

Featuring heat-treated steel construction with a corrosion-resistant blued finish, this FN 509 mag is engineered for superior service and durability in challenging tactical environments.

Additionally, a high-strength chrome silicon spring and injection-molded polymer follower work together to ensure consistent cartridge alignment and smooth feeding for reliable performance in high-stress shooting situations.

Numbered witness holes facilitate quick, visual round counts, while the removable baseplate makes disassembly for cleaning and maintenance simple and straightforward.

If that's not enough, this 509 pistol magazine is made in the USA and backed by a lifetime warranty for exceptional quality you can depend on.

Pick up a few spare mags for your FN 509 from GunMag Warehouse and stock up your range bag today.