So, I traded a guy my Springfield XDM 3.8 for this rifle. It was a build the guy's friend did, and it has a new Anderson Manufacturing lower, and the rest are Colt parts. The barrel is very heavy. It is 20" and it has C MP 5.56 NATO 1/7 HBAR. It has no flash hider. There is what I'm assuming is a year mark on the barrel that says 9/97. The upper has only one marking on it and says C MB. It is a non-detachable carry handle and has a hole in the center for attaching a single rail or optic. Did I get a good deal here? Anyone want to make a guess at a sale or trade value on this rifle? I really have no idea with rifles. I'm more of a pistol guy, however I do like the look of this one versus all the "tacticool" ones that seem to be out there... Thanks!