Lately I have really wanted a Winchester 1200 trench gun, but the cost is just too much. I really like the configuration with the bayonet lug and was wondering if I could do this with my 870? Does anyone offer bayonet lugs for the 870? If not, would the Winchester lug fit? It seems to be a far cheaper option that shelling out the $1500 or so for an old Winchester. Thanks for any input.