SureFire Fast-Attach sound suppressors for rifles and carbines can be fitted to many military-type firearms by screwing the suppressor adapter onto the firearm's existing muzzle threads. (Our adapters are required for attachment of all Fast-Attach suppressors)

For firearms lacking muzzle threads, or having muzzle threads of incompatible size, the muzzle must be threaded or and/or turned down so that it accepts the proper suppressor adapter.