09-13-2009, 10:58 PM
This is a Colt 6721 AR15A3 upper that is off my first build. 1/9 twist, 16.1" heavy barrel. I shot a total of 20 rounds out of it, cleaned it and put it away. I am now going with a lighter upper and so this needs to go. This is authentic Colt upper with all the proper markings. This is for the upper without the BCG but the charging handle is included. 550 shipped. SPF to Wonderer. PM me with questions or trade offers. You won't be disappointed.