Find It Here: https://doublemdefense.com/product/fn-oem-black-detachable-24rd-magazine-9mm-luger-for-fn-509-200100423/ 

Free Layaway!

We accept trade-ins!

Factory New.

UPC: 845737011666
SKU: 200100423

Item Description:

This replacement or spare magazine is compatible with your FN 509.