I don't understand your reply especially the first sentence. I like the idea of a back up piece with the same ammo capability, so what is the point? Why would you carry a full extra mag if you didn't use it in your primary gun first? I think most people carry one to two spare magazines, normally. The BUG is exactly that, a back-up for when you are out of ammo or your primary weapon malfunctions. If you have a malfunction you don't have a choice but to go to the BUG. I suppose you could use your spare mag to load your BUG revolver with your primary pistol malfunctions, but otherwise I would think that you would want to use your primary pistol until you have expended all ammunition for it. So why wouldn't you carry a least one moon clip for a BUG reload?