Digging threw my midway catalog the other day, When I found like a 31" barrel extention that screwed right in a 870 express. It was evan threaded for your favorite choke. Is this thing for real? What would this do for your pattern? Im not going to buy it, but what would the guys at the local turkey shoot think when you got that out of the cab of your truck. Does anyone have one. Just wanted to hear your thoughts.