I think you guys are right. Eventually it will be every gun in the collection with threads on the end.
My dealer made me a package deal with both a LID and a Fixed thread device. I decided to start with 9mm to put on my 9mm AR SBR as well as for use with my Glock. I then remembered my Beretta 92FS which is sitting in my safe......I thought that with the non-tilting barrel, it may function better than the glock with the Trident in place. Judging by the responses so far, I guess I was wrong.
Both it is.