Ok, so I'm pretty sure I want to join the AR club. I currently have a S&W MP-15 .22 but I want to experience what the AR platform has to offer. There are two routes I can go here: The first being just putting up the cash for an entry level AR like the Smith and Wesson or DPMS. The second being building my own AR preferably with a RRA lower and some kind of M4 upper. The rifle will be mostly a range toy with iron sights and some kind of optic later down the line.