I have a pre-ban Colt upper for sale. Upper is marked "CM", barrel is marked CMP 5.56 NATO 1/7, A2 sights, A2 flash hider, A2 hand guard. Large pivot pin, and no bayonet lug. Less than 600 rounds, great shape, great shooter. Bolt/carrier/charging handle not included.
This can be yours for $320 shipped priority.
For a couple of pictures, email me at firstname.lastname@example.org.