I see on this one which has a 5.5" barrel they list a BIN price. The other one was a 4.75" barrel which the ending info gives it received 'No Bids" and nothing about a BIN. I've never seen a item for bid on GB that has a firearm up for bidding, but list a BIN price as the minimum starting bid price. Some are listed as a set price, but no bidding. You want it, you pay the asking price. They do say on that previous one it is a stock picture but describes it twice as a 4.75" barrel. The message I received from the seller this AM advised that the 4.75" barrel OT (on the other post about these GB Open Tops) was no longer available, although Major II says it is. I searched GB and couldn't find it.
As stated, probably has someone not knowing the lay of the land at the sellers place of business.