Factory new FN 509 9mm 24 round Magazine. This mag will fit your FN 509 pistol, this is the 24 round magazine that comes with the full sized 509 tactical. It will fit in all FN 509 9mm pistols, there will be in a gap on FN 509 compact pistols.
These factory magazines are made from durable blued steel with high visibility followers, steel internal springs, impact resistant polymer baseplates and a polymer sleeve. This magazine is made to FN’s specifications and tolerances using high quality materials that provide perfect fit, durability and reliability. Stock up on the extended magazines, and spend more time shooting and less time reloading.