Hello everyone im new here and just starting my first .308 build. I have a quinten defense DPMS style 80% lower that I will be finishing this week, I have a mill, jig, and a friend to give me guidance with the machining. I just ordered a DPMS LPK and I am excited about getting started. I think I will end up going with a PRS stock and read that I need a rifle legnth buffer tube so I ordered an AR15 milspec rifle legnth buffer tube, DPMS 308 rifle buffer spring, DPMS 308 rifle buffer, ar15 castle nut and end plate. I am on the right track with these parts? My only other concern was if I am limiting myself to stock selections by going with the rifle legnth tube? Also am I limiting my self to an upper with a rifle legnth gas system? or will a carbine or mid work fine? Thank you very much for any assistance and sorry for so many questions. I have two ar15's but I am somewhat new to custom builds. This sight seems awesome and I should be able to learn more here.