looks like the law was passed lately that says the the lower is not a rifle yet and that makes it a class two which means that it cant be sold to anyone younger than 21. I am so bummed out right now.
Makes sense, as it can be assembled as a Pistol.
What doesn't make sense, is the difference in laws between a pistol and a rifle.
Sorry bro. Laws are laws, and although I don't agree with many of them, I do abide by them (because I would like to keep what limited rights we have).
So, back to BCM <img src="/ubbthreads/images/graemlins/laugh.gif" alt="" /> ROFL Get'r Done. Building a Lower is EASY...just buy one completed for you. You will see, once you change out the trigger (later on) that there is no reason not to have just bought the Lower assembled already. Then when you change out the grip, you'll play with the detent there, and the safety switch falling out (and scaring you the first time). They really are just simple mechanical systems.