I have an 870 with a 36 inch barrel. It's a goose gun by all standards but I like the reach out and touch capabilities of the 36 inch. I am looking for a bayonet to put on the shotgun. I have found a couple conversion kits online (not for cheap), but they seem to attach to the tube extension, meaning they would only work for an 18 inch, and not my 36. My question is if there are any other styles of bayonet attachments for the 870 that are more friendly to the longer barrel. Any help would be much appreciated, I'm open to just about anything. Thanks.