Yes this is compatible with the T/C Hawken. To use the standard mounts, you will need to drill and tap the barrel. The front ring will slide into the front sight 3/8" dovetail by the muzzle.
For the 28" barrel, you will also need to use the 3" extended sunshade to match the length of the scope to the barrel.
We are working on a "no drilling" sliding mount that will mount directly to the front and rear sight dovetails.