So got a suppressor from work to try on my 9mm AR upper barrel. I have 1/2-28 threading and our 20 year old knights .40 suppressor has M14.5-1 LH for our .40 hk's. Having trouble finding an adapter to fit it. I can find them for M14 but not M14.5. Only real option going to be a custom machine shop job. The suppressors are welded completely and can not be disassembled.

Also would giving them a good soak in a sonic cleaner clean out the years of mag dumps on full auto. They are pretty nasty on the inside and a few have exit baffle hits from shooting them loose.