Looking to restore an old gun or rusty firearm? You've come to the right place. Now available from DuraCoat are finishes designed to replicate the traditional gun finishes such as hot gun bluing, parkerizing, anodizing, and browning. DuraBlue Spray-On Bluing is the best way to reblue an old or rusty gun and still keep it looking traditional and the best part is you can do it yourself. Our DIY gun finishes come in liquid and aerosol spray cans so you can easily refinish your gun at home.