A precision 1/2"x20 to 1/2"x28 thread adapter for use with rimfire or centrefire barrels.
The adapter fits over European 1/2"x20 UNF RH male threads providing a 1/2″×28 UNEF RH male thread common for US origin muzzle accessories like compensators, brakes and moderators.
- CNC precision machined
- 4141 Chromoly steel (Blued option)
- Bore 0.370"