Anyone have a best wayor any way to self remove a welded on muzzlebrake, It's on a 16 inch Bushmaster Dissy upper that I would like to do some modifications to the sight and gas block. It appears to be REALLY welded on in maybe three spots aroung the brake. As it is it would even be difficult to lathe it off because everything on the barrel is stuck there to rattle around as its cut down. Any suggestions would be appreciated.