Complete Colt 6940 upper for sale. This upper has a 14" barrel and is for a registered SBR or pistol lower only. As configured it is not legal to attach to a standard lower. Barrel shortened by ADCO. Upper assembled by me. Barrel nut wrench included. Also includes Matech rear sight and rail ladder covers. Upper is in excellent condition, with the exception of several dings on the barrel near the FSB (see pic). Priced accordingly. 300 rnds through upper. $575 550.00 shipped. USPS m.o. or paypal (friends and family or +4%). Thanks for looking.