So, when we begin the threading process using a metal turning lathe is most idealas it will give consistent results that are acceptable. Something that must be kept in mindwhen threading a barrel for a muzzle device for the first time (doesn't matter if it's a rifleor a handgun) the threads on the outside of the barrel have to match the threads that areon the inside of the muzzle device. Making sure to measure the diameter of the barrel andcross referencing it with the desired specification will limit error