To be honest with ya, I don't see many used ones here, if any, I have to go by what others have reported they find em for. Every time I pick up a new Handi at my FFL, they don't have any NEF or H&R rifles, once they had a used Pardner, tho, and they have a lot of used rifles in their racks, just none of the right kind!!
I've looked in a couple pawn shops, they usually have a shotgun, but never found a rifle yet, got an idea they don't last long when they put em up for sale, and for good reason!
Recently I looked for a K31, looked for Handis too, never found any used, anywhere. New ones at Sportsmans Warehouse, GI Joes and FMS.
Tim