Hey guys Im planning on building my first AR15, and I want to know what the best quality is. What is the Rolls Royce of Lower receivers for the AR 15? And what is the best deal as far as quality in comparison to price for the AR15? Note that this will be a California Legal AR so I will proboboly have a Price 50 mag lock on it. Also I have heard that California might make all pistol grips illegal even if they have a mag lock so I was planning on getting a couple of Lowers and builing one right away but saving the other ones to build later, so If there are two or three lowers you guys think are good let me know I might get a few different brands as long as they are quality. Another question are there certian brands illegal only in Claifornia? If so what brands are legal? Thanks guys youre all a really big help.