[shooter2440]

Hey there, I'm building an AR15 and have decided on most of the parts ACCEPT the lower. I am set on the CMMG upper 18" stainless steel bull barrel but I want to know what lowers someone would recommend with the CMMG upper. I am going with this upper because I am a big fan of stainless steel bull barrels and it is the only one I have found and I have also heard good things about the manufacturer. Back to the question, I have looked at LMT, BCM, and Spikes lowers. Just wondering if someone could shed a little more light on what they might think would work best with my upper that I am planning on purchasing. Also, is there a website anyone suggests for the best prices for AR15 parts? Thanks in advance!