Does anyone know where you can get a contour diagram for WOA's 18" 6.8? I've had no luck on their website. I bought the MB68AR to throw on there and the overlap does not allow me to fully thread the brake to the barrel. Surefire says that the brake won't fit on a diameter greater than .749, and I assumed that since my gas block is .750 that all would be well...mistake. I know the obvious answer could be that I am just a dumbass and can't read, but has anyone else had this happen or can shed light on similar brake issues?
