The Wilson's brake does look pretty good. How about this question. The Rock River Arm's brake is just a A2 bored out and pressed on. So, what's the difference if I just take a real A2 flash suppressor fill in the slots with JB weld and reattach by screwing back on with more JB Weld on the threads to make it permanent. The only thing left to consider is the outside dia. of the now A2 brake. Could they call it a grenade launcher? Are the pressed on brakes by RRA and Knight's Armaments a larger dia. than a real A2?
Don't get me wrong. I think this is all Bull and will try to comply when it's sensible to do so but I don't feel just because the big bad ATF say's something like to be permanent it has to be 1000 degree silver soderd, blind pinned, etc... on it doesn't make it 100% so.