Look at the APA = American Precision Arms "Little Bastard." It works amazingly well.
Does anyone have any experience with the shrouded brakes from Witt Machine?Also in the precisionrifleblog check out the "what the pros use" to see what the top PRS shooters in this country like.
APA lil or fat bastard is a safe choice.
FWIW I just ordered a BEAST from MBM after seeing his videos and from seeing how well they looked on DGD6MM's rifle