I am gearing up to start my first build. Does anyone have any experience with PSA uppers? I have read many of you talking about the lowers (so much so that I am planning on using one myself). It will be used as a range rifle and will more than likely end up tuning some hand loads to shoot for accuracy. I am looking at a stainless barrel (good idea?) and free float midlength hand guards. Also, I am considering an 18" bull barrel. Is there much difference between the 16" and 18"? I like the idea of the 1:8 twist allowing to shoot heavier weight bullets as well as the cheap 55gn. I have been reading all I can find and have an idea of what I am looking. However I am here posting so I am obviously more that open to ANY ideas/suggestions/advice you all may have. Finally, the $$ I an issue here which is why I am not looking at RRA and others. If I should wait to spend extra cash for a better upper that is fine but I am definitely an instant gratification kind of a guy! Thank you gentlemen! RLTW!