We have for sale is a complete upper to go on your lower. It has a Kreiger barrel with a free floater handguard. Also the rear receiver with 1/2 minute elevation and windage with a hood. The front sight is held by 4 set screws and not pins. all so comes with a Colt bolt. It is set up to shoot DCM matches. This upper goes for over 1100.00 and being offered at 700.00 . Just email with any questions.