High quality stainless steel lock / jam nut.
These lock nuts are specifically designed to be tightened up against any muzzle devices to ensure correct timing and to prevent muzzle devices from coming loose or falling off.
Also perfect for threaded barrels which have no shoulder on the barrel thread.
Also perfect for threaded barrels which have no shoulder on the barrel thread.
More lock nuts & crush washers available to suit most thread sizes.
"There's one bloke for Muzzle Brakes & Accessories - that's Gunbloke"