[ARCHIVED THREAD] - Unidentified upper receiver help

Posted: 1/21/2014 5:01:05 PM EDT

I got screwed in a private sale for a Colt Le 6920 m4 carbine turned out to be just an m4 lower receiver the upper has a keyhole forge marking and an Owl on the top but I can't identify the owl any help or ideas? I'm trying to post pics