I have what I believe to be a police surplus 6921/M4 upper for sale. It comes with the carry handle as shown
Bolt carrier marked "C," bolt marked "MPC," barrel marked "C MP/5.56 NATO 1/7"
The extended A2 flashhider has been pinned and welded for 16" total length.
KAC RAS comes with VFG and two rail panels.
Asking $550 shipped CONUS
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