It is hard to say. One seller may have thought he made a great markup on the rifle by keeping it a few years. Another guy, after buying it, may have found something else he really wants and can't afford both. It is also possible that a guy would buy such a gun and realize that he can't afford it at all. Or maybe a fellow is getting older and his eyes do not do so well with iron sights. Or maybe it is a fantastic rifle, but the owner does not dare take it hunting. Or maybe his wife bitched him out. Or whatever. There are a million reasons for selling a gun. The BATFE says that 4 years after a gun has been manufactured, tracing it is just about impossible because it will pass through so many hands.