I have an Olympic Arms preban with a Colt M4 1/9 A3 upper (16 inch barrel), and a 4 position M4 style stock. Upper and lower color match nearly perfectly. Upper and lower fit together tight, with zero play. I have the original box and factory build sheet to prove the preban status of the lower. You will not find a better looking preban M4 anywhere. I'm asking $1650 and would prefer to do a local deal in Dallas, but I will ship to a motivated buyer.
I don't know how to post pictures, but I will send them upon request.