If you read my initial comments I said I am new to AR 15s and maybe I'm lookin for too much for what my build/price intention was. I now know I can build a lower and have different uppers. If I want a 600 yard ss barrel I can buy one and set it aside for those times I want to shoot that distance. More than likely I will end up building a decent firearm that I can put a nice upper on it when I have more cash. At the same time I'm not in a race to finish this because I have plenty of firearms including one that will out shoot the range I belong to currently. I've never built a rifle before and am looking to you guys to give me the most genuine input to steer me in the right direction and to clarify if my intentions are pipe dreams or reality. Constructive input is appreciated because I'd rather learn here first than after I buy the parts... Where I am currently at in this project is building the lower. I am picking up an Anderson stripped lower tomorrow and using the trigger kit listed in the thread. Do you have any suggestions on what may help me in the current stage of my build? Also, if it costs me more than 600$ I'm ok with it it just will take me longer to fund the build. The reason I said 600$ was there are plenty of rifles out there to buy for around that price range and I figured I could stretch my $ if I built it myself and I will prevent having a box of useless parts if I bought a new one and upgraded it.