I've been lurking around the edges for a month or two, gaining a bit of info and managed to work the kinks out of my first .308AR build without to many problems. So I'm just saying hello and thanks to all who helped without knowing they were helping at the time.
Did the build using stripped PSA upper and lower recievers but didn't run into the compatabilty issues some have found, only real kink I had was short stroking caused by a short gas tube, swapped over to the longer Armalite rifle tube and its run problem free since then.