Shotgun choke assemblies and firearm supressor assemblies and methods connecting the same

A shotgun and shotgun choke assembly, the assembly comprising:

• a shotgun having a barrel, the barrel comprising threads on an interior surface of the barrel, and a collet on a muzzle of the barrel;
• a shotgun choke comprising:
• an interior surface, an exterior surface, a first end, and a second end, wherein the interior and exterior surfaces at least partially define a bore through the shotgun choke extending from the first end to the second end;
• first exterior threads on the exterior surface of the shotgun choke;
• and
• a ridge comprising a plurality of knurls on the exterior surface of the shotgun choke;
• wherein, when the barrel and the shotgun choke are assembled, the first exterior threads are threadably mated with the threads on the barrel and the collet is engaged with the ridge.

A gun assembly, the assembly comprising:

• a gun having a barrel, the barrel comprising a bore extending from a first end to a second end of the barrel, and a first locking surface on the barrel;
• and
• a tubular, the tubular comprising a bore extending from a first end to a second end of the tubular, and a second locking surface on the tubular;
• wherein the tubular is threadably mateable with the barrel such that the first locking surface extends, along a longitudinal centerline of the tubular, past the second locking surface such that the first locking surface is lockingly engaged with the second locking surface, wherein one of the first locking surface or the second locking surface is a locking surface of a collet;
• and
• wherein the tubular is a shotgun choke or a firearm suppressor.