-threaded muzzle to enable mounting of a compensator or suppressor.
-Suitable for Tokyo Marui / Marui System G Series GBB
-Better fit with metal slide set when install on TM G17 GBB
-Able to Attaching any Muzzle Brake or Silencer with -14mm Thread
5KU-GB-450-B FI 9MM -14mm Threaded Barrel For Tokyo Marui G17 Series GBB