SUREFIRE FA HUB 556 1.375X24 SOCOM

Surefire HUB Suppressor Muzzle Adapter, Converts any 1.375X24 Thread-Pattern HUB Suppressor for use with SureFire SOCOM Fast-Attach Muzzle Devices, 5.56 NATO, Nitride/DLC Finish, Black HUB-FA-556-BK