I just received a Cimarron Colt SAA replica. It’s the Evil Roy edition which means an action job was performed by the Cimarron gunsmiths. As part of that the case metal finish was removed from the side of the hammer and not it is more of a shinny finish vs case metal. I know I’m not going to get it to look like the frame but I’d like to get it dark. The one option I’m familiar with is Birchwood Casey Super Blue. I’m not a huge fan of it but it would work. What other options are available to me for DIY?