This is the perfect start for a clone Block II M4a1 upper build. One of the most popular builds as it allows for a pinned & weld to achieve the 16" OAL.
-Colt 14.5" Gov Profile C MP (NEW)
-Colt Complete "C" Stamp Upper Receiver (Surplus)
-Coronet Contract Low Profile Gas Block (NEW)
-Colt Gas Tube (NEW)
Includes everything neccesary for a Block II M4A1 build aside from a RIS II Handguard, Muzzle Device, Charging Handle & BCG.
Upper receiver was in very good condition with minimal wear. Was easily touched up with Aluminum-Hide. All other parts are new. The barrel threads could have been protected better though. I had to chase the threads with a die because the second and third muzzle threads where slightly deformed not allowing the flash hider to screw on.
