The Area 419 Hellfire Dead Air KeyMo Suppressor Mount allows you to use your Dead Air Sandman suppressors with the Hellfire Self Timing Brake system. Easily switch from using the Hellfire muzzle break to your Sandman suppressor in seconds. The mount is constructed from aerospace grade 17-4PH stainless steel and black Nitrided to prevent galling. Black-nitride finish Install wrench included Mfg: Area 419