Upper Receiver Groups

Anchor Harvey Dog Bone, Geissele DDC 10.3" 5.56 URG

Colt, Geissele 10.3" 5.56 Black/DDC

FN, Geissele 10.3" 5.56 FDE/DDC

FN, Geissele 10.3" 5.56 FDE/FDE

11.5" Duty Grade BCM Upper