SilencerCO Omega, Hybrid, Harvester BIG BORE. Replaces your rear end-cap. Black Nitride finish. Wrench IncludedPart of the Patented Hellfire/Sidewinder Modular Brake SystemThe Sidewinder Self Timing Brake system is not just another knockoff copy of existing self timing brakes. It was engineered from the ground up to be different, easier to install, and much more versatile. Read more on all of its advantages below:NOTE: SilencerCo Omega mount also fits the Hybrid and the Harvester BIG BORE. Suppressor Mounts- Suppressor mount allows you to use your compatible suppressors with the Sidewinder Self Timing Brake system by simply removing your Sidewinder Brake and installing one of these mounts- Mounts are Black Nitrided to prevent galling- Made to meet manufacturers specifications, but these adapters are not associated with their respective manufacturers in any way.- If there is a suppressor you would like to see a mount made for, email sales@area419.com and we will consider them based on demand.- Our mounts do not use a collar like the muzzle brake. These mounts get torqued into your suppressor and therefore allow your suppressor to become a direct thread onto the Sidewinder Universal Adapter (left hand).Allows the mount to be much more compact, and adds very little to the overall length of the systemWe recommend blue Loc-tite on the external threads of the mount to hold it semi-permanently in the suppressor. Since you will be threading the can on in a left hand direction now, if it is not torqued properly into the suppressor, you may unscrew it when attaching to the barrel. No fear though, its impossible to get the two stuck together in this situation due to the opposing thread directions, simply turn it the other way and they will separate, then start over.Gen 2 Mounts come with a wrench