Magnum Research BAR506IMB Desert Eagle 50 AE 6" Threaded Matte Black Steel, Fits Desert Eagle Mark XIX, Muzzle Brake
https://www.tandktactical.com/shop/761226087236-magnum-research-bar506imb-desert-eagle-50-ae-6-threaded-matte-black-steel-fits-desert-eagle-mark-xix-muzzle-brake-14033
https://www.tandktactical.com/web/image/product.template/14033/image_1920?unique=4ab5767
This Desert Eagle 6" barrel for your Mark XIX features a black finish along with an integral muzzle brake.