I've been on here for months and still can't figure out all the talk about AR15 uppers,lowers,stripped uppers and lowers,LPK's,etc.
Clue me in. Why do people buy all these different parts? Why not just buy the gun you want? And I know I have read it here many times but refresh my memory, is it the upper or lower that the ATF would consider the "gun"?
Clue me in. Why do people buy all these different parts? Why not just buy the gun you want? And I know I have read it here many times but refresh my memory, is it the upper or lower that the ATF would consider the "gun"?