[Thor]

Fire bluing is just an oxide protective coating and it also is an indication the parts have been annealed to releave internal stresses. Roll pins, leaf springs and grip screws were doen this way. The oil on them will darken that pretty blue color, but dones hurt it any. It just makes the display a little nicer when you want that awesome blue to burst out! Oiling on the regular bluing is recommended certainly. I use clenzoil on all bluing moving parts, strawing, I keep the grip clean as possible and also the fire blued parts/ The alcohol just removes the oil, thats all. You can oil them up if you want to store them a while. I just like the brilliance of the fire blued parts when displaying them. Thor