Bully Arms skeletonized receiver set. Fostech nickel boron lightweight bcg, Faxon pencil with integrated brake, tac com buffer system. Seekins adjustable gas block, Geissele trigger, timber creek skeletonized grip. All lightweight parts used. Weighs under 5lbs w/o optic. Full parts list can be given to anyone interested. Will only meet at an FFL. This can also be discussed. $1600