These replacement magazines for the FN 509™ 9mm pistol are factory originals from Fabrique National. These FN 509™ mags have a corrosion-resistant stainless steel body with a brightly polished interior to help the ammo stack flow smoothly, with a tough matte black exterior finish, and witness holes numbered 4 through 17 (4 through 10 on the 10-round model).

• Matte black polymer base pad to protect magazine if ejected onto hard surfaces
• High-visibility, anti-tilt follower of bright orange polymer
• For FN 509™ pistols chambered in 9mm Luger only
• NOTE: Will NOT work in FNS TM or FNX TM pistols
• Available in full 17-rd capacity or 10-rd for folks living in capacity-restricted jurisdictions

Whether you use your FN 509 pistol for personal defense, competition, or on duty, do you really want to trust its reliability to a cheap aftermarket mag? Get some spare, original FN factory mags, and enjoy the peace of mind.