Looking for a Factory Colt C7/A1/SP1/XM177/M16A1/723/733 Small Front Pin A1 style Carry Handle Upper Receiver with Forward Assist. I think those models all used the same style upper?... Feel free to correct me if I'm wrong and I'll edit the listing.
Willing to consider a complete upper receiver group with barrel, etc. if that's what you have for sale.
Let me know what you got. Please Email for quickest response.