Before embarking on such a restoration, ensure that the cost of supplies and labor is worth the rate of return. Have the firearm appraised before beginning any restorations since self restorations usually do more to harm the value of a firearm than increase it. In the case of the Stevens, the cost of having the barrels blued was more than the entire shotgun was worth. So instead of bluing the barrels, I decided to finish them with the DuraCoat Shake ‘N Spray kit. This self-contained kit is pretty straightforward as is the application, but you should still take time to familiarize yourself with the instructions, especially the preparation of the metal and mixing of paint.