So, if you haven't seen my existing thread already, I got a Remington 870 Express Super Mag. It only has a 23" barrel though. I found a 30" full choke barrel on ebay for a good price, but it says it's for a wingmaster. I know it is still a 870, and that it will only handle a 3" shell as opposed to my 3 1/2" shell, but will the wingmaster barrel fit on my express? The seller said it would, but I just wanted to get another opinion.