Where did you find an 800 degree oven?I agree with a couple of the other guys, charcoal blue is fairly durable. What I’ve seen on some replicas is more of a niter blue, and that can be easily done in mass production. Here is the first test piece that I tried before doing a revolver. It required a oven at 800* and wood charcoal.
IMG_0241 by Oliver Sudden, on Flickr
IMG_0400 by Oliver Sudden, on Flickr
I will have to ask. I do however know that Taylor's uses them for their fire blue screws and nickel plating of their clone SAAs. Maybe call Taylor's and ask them. I would help out more but work has me swamped.If you could find the info Kcode98 it would be appreciated I’d like to ask them about a separate revolver frame along with the cylinder.