Here is the new TE Terminator muzzle brake.
It is self install, so no Gunsmithing required, designed as a direct replacement for the factory Sako TRG, Blaser & Tikka Tactical brake with M18x1 thread.
http://i1004.photobucket.com/albums/...psglzecwol.jpg
Here it is next to a Sako TRG brake.
http://i1004.photobucket.com/albums/...psihv6dyu9.jpg
Here is a performance video.
https://www.youtube.com/watch?v=KzC1nyCXJjs
More info here.
TE-Brake