Got an upper from FN Mfg. in Columbia SC I need to sell, upper has full auto bolt 1/7 twist 5.56 NATO chamber 20" barrel. Never fired. Never installed on lower. paid 550.00 will take 450.00 shipped. Here's a link to thier site http://www.fnmfg.com/. Can send pics to an e-mail address. This is an A2 with carry handle and flash hider. Sold pending funds.