I had a night on the town, in St, Etienne, with Richard Levi, the owner. The guns are superb, got to handle a few in the shop, and saw his inventory of actions-about five, as I recall. His unique, removable sidelock system was a marvel, no nail on the side to remove it, you simply pressed forward on the trigger and the entire sidelock mechanism popped up out of the wood for cleaning or inspection.
Richard wasn't interested in exporting to the states, he had all the work he could do, right in Europe. He was working on the design for a 28 gauge boxlock when I was there.
I think I've seen one ad for a Granger for sale over the years.

Best,
Ted