Shop › DE 50AE 6" BARREL BLACK W/ BRAKE DE 50AE 6" BARREL BLACK W/ BRAKE $502.55 Magnum Research Barrel, .50 Action Express, 6", Picatinny Accessory Rail, With Muzzle Brake, Fits Desert Eagle MK XIX 50AE, Black BAR506IMB Quantity: Add To Cart Added! Magnum Research Barrel, .50 Action Express, 6", Picatinny Accessory Rail, With Muzzle Brake, Fits Desert Eagle MK XIX 50AE, Black BAR506IMB