If a guy wants to put a thread-on 1/2x28 can on a 5/8x24 barrel, is there someone making a thread adapter for that? I have a buddy looking for one, and all we have found are adapters to put a 5/8x24 can on a 1/2x28 barrel. He has a thread-on can that he uses on AR's, .22's, and 9mm. It is threaded 1/2x28, and he wants to try it out on a .308 that is threaded 5/8x24. He's not super concerned about extreme accuracy with the system, he just wants to be able to use the same can on as many different platforms as possible.