I recently bought an AR6200 and AR7000, and both had bind plugs. The 6200 had the one that plugs into the reciever, and the 700 had one that plugs into the reciever, one that plugs into the charge lead, and something that looks like a clip. Not sure what that is for other than possible fixing to the radio or plane for safe keeping of the bind plug. One also came with my DX7 radio that came with the AR6100.

So I have four bind plugs, and only really need one.