Your a fool I have 8 my best buddy has 4 and did a trade with a guy that has 3 or 4. No problems no issues and accurate as can be . Probably should not make statements you know nothing about!Not all do all their own machining but most do.
I stand behind my statement, I see no better results from top tier guns than cheaper ar15s with the exception of bear creek, they don’t seem to have a clue.