SureFire SOCOM556-MONSTER 5.56x45 sound suppressor
The SureFire SOCOM556-MONSTER 5.56x45 and .223 sound suppressor, can only be installed on compatible SureFire muzzle devices.
Wiki
The SureFire SOCOM556-MONSTER 5.56x45 and .223 sound suppressor, can only be installed on compatible SureFire muzzle devices.
Wiki