Andy Jones

so that means I have a new M1 with the 18.5" barrel with an older extension. It all makes sense now. I guess it is time to look for a new extension and sell this one. Andy

the collar is screwed onto the shotgun and the extension is screwed securely into the collar. I have confirmed that is is indeed a factory Benelli extension so I am stumped as to why it is too long. Andy

With the collar, mine is 9 11/16"

I know the barrel clamp is not a benelli part, that is just what he had laying around so he gave it to me. I purchased the tube from a benelli gunsmith who took it of a customers gun when they were upgrading to a 9 rd tube so I did not have the luxury of seeing it in the cardboard. The extension looks like a benelli extension in the way that it is machined where it screws into the collar nut, it looks just like my factory +1. everything is tight but it just won't go down. Is there some sort of difference between the old M1 and my new M1? Can anyone give me the overall measurement for a 7 rd mag tube mag tube that is flush with an 18.5"barrel? Andy

I purchased a customer take off mag extension a little while back for my M1S90. I was under the impression that the factory mag extension should be flush with the end of my 18.5" barrel. My mag extension extends about 1/4 of an inch past the end of the barrel. I know it won't hurt anything but just for looks I am not to hot on it. Is what I have a factory Benelli extension? Is there anything that I can do to shorten it a little? Also, does anyone know where I might be able to get a factory benelli clamp because the one that I have is too large for the groove on the extension. Thanks for any replies. Andy