Hi fellas, I have several mkIII barrels to install on some receivers and wondering what type of barrel vice and wrench is suggested to tighten the threads. My concern is not to bugger up the metal finish too much leaving claw marks or damage to the receiver or barrel. Anyone experienced in installing these projects or at least know of any affordable gunsmithing products that will work on mkIII barrels? I have at least ten barrel changes in the near future and I'd rather buy my own equipment than have all sent to a gunsmith. thanks in advance for any help.