I have a 7 inch AR barrel I purchase off of AR15.com over a year ago. The barrel is threaded and made from a M16 A1 barrel. The barrel does not have a gas port, but one could be added by a gunsmith. I purchased the barrel to built a SBR 22lr, but never got around to building it. The barrel was used, but is in great shape. The chamber and rifling are perfect. I will take $100, which is less than I paid for it.
