Annoying since I sent them this picture showing my upper was already clearanced prior to breaking 2 levers. Also frustrating because they're saying that eventually they will cease sending replacement levers, claiming that the issue must be with my setup/clearances, but without explaining to me the fault/hole in my reasoning/theory that levers can break if the geometry of the lever and metal of the lever are not strong enough to repeatedly overcome a strong trigger finger press forcing the trigger shoe to the rear while a strongly gassed action forced the BCG to the rear.