After this same question came up on another forum(maybe it was this one) a while back, I asked my LGS about it. They claimed that there were only two possibilities where this could happen legitimately. First, someone(as in wife or girlfriend) buys a gun as a gift. On Christmas day, the recipient opens his gift, does not like the gun or caliber and immediately takes the firearm back to the dealer without shooting it. In this case, they claimed(and I believe them) they would reduce the price as trade in by 10% of the purchase price. They would then sell the gun as new, but would advise the new buyer, that altho it was new and unfired, about the situation and reduce the price to them by the same amount. They claim this happens every year and most buyers have no problem getting a new gun for 10% off....as long as the gun was not fired. The second situation is one they encounter all the time. Someone wins a raffle gun at a banquet(DU, NWTF, etc.) does not want that particular model and thus does not do the paperwork and it is returned to the store and they are allowed to pick another firearm of similar value instead. This LGS goes to these types of fund raisers to do the transfers on site. This is an example of where they may or may not disclose this info to the new buyer, as it is no different than taking a firearm to a gun show that does not sell. In both cases the firearms in question may have had a scope previously mounted and show marks to that effect. Those they claim, other than guns handled a lot at the counter, are the legitimate ways someone could get a gun that may look used, but isn't. There are, they also claimed, many non-legitimate reasons...............