Spoke with a fella in the parts department at CZ-USA, he said he didn't have a part number for me to order an Urban Grey backstrap, and said he doesn't know of it becoming available in the future.
I may be partial, as an owner of said color P-07, but I can think of a few really good reasons a customer might need a replacement polymer backstrap, or set of them.
Am I asking too early in the lifecycle of this color? Think they'll become available?