Barrel Threading / Barrel Shortening. We are able to offer all types of barrel threading for moderators and muzzle brakes. All of Our threads are single point cut on a lathe not a die, and are concentric to the bore to provide an accurate and safe mounting point for any muzzle device. Finally, after threading, we usually cut a 11 degree target crown but all other crown options are available. Any thread configuration can be cut, but depending on the rifle and its use, we commonly use M18 x 1, 5/8" UNF and 1/2" UNF Barrel Threading Service. £70 For an additional cost we can also supply a thread cap/ protector with either a knurled finish, or the smooth "invisible" type. Thread cap from £20 Barrel re-crowning only £40 The Barrel Threading / Muzzle Threading Process Barrel mounted and dialed in concentric to bore. Barrel turned down ready for threading. Barrel threaded ready for crowning. Barrel crowned to 11deg. target crown Just a couple of examples of our muzzle threading / cutting service. One of our invisible end caps. We can manufacture practically any thread cap that you may require. Barrel cutting shortening and threading service uk. Cutting and re-crowning a rifle barrel. Barrel threading and barrel shortening service. Bedfordshire, Buckinghamshire, Hertfordshire, Northamptonshire, Milton Keynes, Gunsmith services, gunsmithing, muzzle screw cutting, threading, chambering, crowning, AR 15, Remington 700, Howa 1500, Sako, Tikka, CZ 452, ruger 10-22, sound moderators, stalking rifle, lathe concentric muzzle threading, shilen barrels, lothar walther barrel,. Barrel Threading service UK.