Mods required - Faxon Firearms 450 Bushmaster/458 Socom Gunner Muzzle Brakes

I have not used it yet because the MUZZLOK inner diamiter isn't even close to fitting the 450BM faxon barrel I bought this for. I will have to drill it out with a unibit to even pass the threads. pathetic manufacturing from faxon since their muzzle break doesn't even fit their own barrel. disappointed, pissed off and would not recommend. I thought made in USA would mean something. thank you faxon for proving to me why people keep buying chinese made garbage.