A precision 1/2"x20 to 5/8"x24 thread adapter for use with rimfire or centrefire barrels.
The adapter fits over European 1/2"x20 UNF RH male threads providing a 5/8"x24 RH male thread common to US origin muzzle accessories like compensators, brakes and moderators.
- CNC precision machined
- 4141 Chromoly steel (Blued option)
- Bore 0.450"