Came across a place here in houston called SOG armory and they planted the seed of building the AR i cant afford to buy.. So i have bought a military spec Aero Percision assembled lower and as long as i continiue to not smoke the ole lady gonna allow me to keep buying parts.. I guessing this is gonna take me a good 6mths to complete as i aquire i little extra money here and there. The next thing i plan on putting on it is a nice telscoping stock then get started on the upper reciver. My first question is as i read threw everyone elses post it seems to be the norm to buy a complete upper, is there a reason for that i was planning on buy stripped upper reciever and putting it together a little at a time wit the help of the guys at SOG who said they teach me what i need to know and assemble parts for me if needed and $400 for a complete upper is rarly in my funds..