If you're one of the many owners of a SilencerCo Saker and have ever longed for a simpler and more reliable mount, your salvation is here. The Key-Mo also gives your SilencerCo Saker a much-needed upgrade. Simply unscrew your existing mount, and thread the Key-Mo on. Your silencer is now compatible with the Dead Air Key Brake and Flash Hider - giving you the best mounting system in the industry. Features: 4.6 oz weight Fits SilencerCo saker