I wonder why they list rifle frames alone? Could they be using the same barrels as the OE?They certainly have the same calibers with just the addition of the one rimfire barrel. I hope they are using the same barrels, as I have all of the current calibers I want, but I could just buy a frame and save a few bucks. Just conjecture, but it's curious that this is the only gun I've seen them list a frame alone for. Thanks, Billy