In return, I picked up a Crimson Trace laser grip for an A2 AR15. Then a Colt 6520 wearing a Trijicon ACOG TA11F followed me home.
On the right hand of the receiver the little carbine wears "Restricted Military/Government/Law Enforcement/Export Only". This means it was a ban era rifle most likely, and to find it wearing an ACOG mounted to it's carry handle, and for a good enough deal to attract my attention, really leads me to believe it was a police carbine that was traded towards something else.
Speaking on that little Colt Carbine, I like it a lot. It's a pencil barrel with 1/7 twist, chrome lined, wearing an A2 upper. This is one light, pretty simple carbine yet it can still chug out the heavier 5.56 projectiles without issue.
The ACOG is a 3.5x model with red chevron and bullet drop compensation for 5.56 NATO out to 800 yards. I pulled it off the carbines carry handle and have it mounted on the mount my Elcan Reddot came on. I will give the Elcan back it's mount when I get around to buying a LaRue mount for the ACOG.
I put the Lasermax A2 laser on the carbine, and man that is a handy little rifle. Colt says it weight 5.8 pounds, and the laser can't add much to that.