Unless you have a vise, reaction rod & armours wrench taking off and putting on muzzle devices can be tough.I have looked into replacing the handguard on the Saint Victor for a BCM Quad Rail but wondering if I have to replace the barrel nut since the barrel nut has screw holes all around it so theoretically I don't have to replace it.
The muzzle is not permanent but taking it off was a giant pain in the balls. For me and the gunsmith who managed to finally get it off.