Is this a citori made by miroku or a miroku?
I am pretty positive that the miroku did not have chrome lined barrels. I'm not at home at present, but I have an article from shotgun sports that I collected a few years back where the writer went into detail about the miroku guns and I'm almost positive he said they were not chrome lined.
For a definitive you will have to wait till next Monday from me as I won't be near that article to confirm till then.
I would think the miroku made Citori would be the same, but I would not trust that.