I have a 500A that I have had for a while it has a lot of rounds through it. I want to sell it to help off set the cost of a pistol but want an idea as to what it's worth before listing it. I have replaced the mag spring and secondary shell stop unit because it was starting to malfunction. It works like new now and u had the gun smith chop the bbl to 20 inches and install the beed. It has some ware but wood is in great shape. What do y'all think is a fair price? Thanks.