Found that Cerakote seem to be based in Newmarket, which is not many turns of a wheel from me.
Also found this on their website which is a mix of 4 Cerakote colours, but not sure if the black is just for the ring?
https://www.cerakote.com/project-gal...i-carter-color
Could get a bit salty if I need to buy 3 or 4 tins at $35 a pop!