These are either factory new, or lower receiver take-off new and repackaged.
Contains the lower parts kit for the Colt M4 semi-automatic receiver, less the grip and screw and also less fire control (trigger group). This is convenient if you are looking for the best in solid performing lower parts, but are using a trigger upgrade kit, like Geissele, LMT, KAC, etc., and also have an upgraded grip.
All 100% Genuine new Colt parts. May contain oil (that is good)