I have seen the tutorials and other posts related, but how easy it it to remove a permanently attached muzzle break and replace it with a permanent Phantom or extended A2 FH?  I have most of the tools and have access to welding equipment, but I am not certain if it is something easy enough for me to do, or if I should send it off to a smith and have them do it .  I understand that I need to grind off the existing weld and ultimately destroy the existing break to remove it from the barrel.  When re installing it, It needs to be pinned & welded, but do I need special tools for installing the FH?  Do I need Crush washers?  I just don't know.  I have the time and tools, just not sure of the cost to have a smith do the work.