Complete FBI HRT 11.5 inch upper Colt 11.5 inch 13629 FBI contract factory heavy barrel pretty rare. 13629 upper KAC quad rail C mark bcg If you want a FBI HRT clone rifle clone, this is the perfect upper. Upper with A2 FH only no lower, optic, rail covers and broomstick Sale for 950 or trade for complete Geissele Super Duty upper or DD MK18 upper
