08-03-2014, 01:34 AM
Stop beating yourself up, call Mark at Precision Firearms, and ask him to send you the best barrel he has in your preferred length. I will promise anything he sends you will be happy with. If I were in your shoes, that's what I would do. In fact, I would probably just ask him to send me an upper with his best barrel in it and save myself the headaches associated with sorting out any issues I created building it! But if you want to build it, just buy the barrel from him and be done with the headache!
You seek escape from pain. We seek the achievement of happiness. You exist for the sake of avoiding punishment. We exist for the sake of earning rewards. Threats will not make us function; fear is not our incentive. It is not death that we wish to avoid, but life that we wish to live. - John Galt