Diamondback DBX57MAGFN DBX 20rd ProMag FN 5.7x28mm Blued Polymer
https://www.tandktactical.com/shop/708279009143-diamondback-dbx57magfn-dbx-20rd-promag-fn-5-7x28mm-blued-polymer-24347
https://www.tandktactical.com/web/image/product.template/24347/image_1920?unique=9732e55
This ProMag FN replacement or spare magazine is compatible with your Diamondback DBX.
