I have a suppressor intended for multi use. It is threaded 1/2X28 and sold by BRP Corp. I got a great deal since I have one of their machine guns. I also plan to use it on a 9MM SBR buils that is in progress. I have a 7" 1/2X28 threaded barrel from ADCO. What I would also like to do is use it on my G17. Where can I find a stand alone Nielsen Device or L.I.D. No interest in getting another suppressor.