Magnum Research Desert Eagle .44 Magnum caliber revolver. Special model with unusual titanium finish with matching buck knife numbered to the gun. The gun was made on a .50 AE frame, but converted to .44 by the factory. The label confirms that it was shipped as a .44 with titanium finish. The knife has a matching finish on the blade and is marked “Desert Eagle Pistol” with serial number. A neat set.