Got this thinking I was going to build up a Colt. I have other builds I'm focused on so this is up for grabs. Upper marked CM with charging handle, sights and door. Paint on handle has faded in parts and there's a few other markings as shown in the pics. Right click pic and select view to see full photo. Inside and threading is in good condition and is definitely ready to build on. PM me with any questions. Looking to get $85. Will ship for additional $5 Thanks!