Great looking and shooting barrels guys, just a word on your manufacturing if I may..I have built about 4 stripped upper using your barrels recently and it would be great if you could clean up the gas port hole a bit better....the one I did tonight has a burr so long that even 2 passes with my "Tornado" brush couldn't bust it all up.....not a huge deal, but I have not seen one of your bbls yet that didnt have the burr protruding.