A few years ago I converted my 870 to a home defense weapon. I just purchased a Mossberg Shockwave and put the 870 back to its original configuration. Now I have a Remington 18" barrel for 2 3/4" shells, Hogue Tamer pistol/forearm set, TacStar magazine extension, Streamlight magazine extension mount and a BSA laser with remote switch that I'm not using. I'm guessing $150 plus shipping would be fair.