could rust blue it yourself if you are a patient man.
That said, I grey the steel on my flintlocks.
Polish the steel then Cold blue and then rub back with oil saturated 0000 steel wool.Looks very nice, I like it. Any info on the process?
Got one from Shilen, blued and engraved with the caliber designation.Sadly i'm not that impressed with the bluing from Shilen.