A hitch coupling assembly that is used to couple an accessory to a vehicle is described. The hitch coupling assembly includes a receiver tube and a receiver wedge assembly. The receiver tube and the receiver wedge assembly are coupled to each other using a tightening bolt. The receiver tube, receiver wedge assembly, and tightening bolt are then inserted into a hitch receiver of a vehicle, and the tightening bolt is tightened to couple the hitch coupling assembly to the hitch receiver. A receiver lock can be used to lock the hitch coupling assembly into the hitch receiver. An accessory rack or other accessory that is coupled to the hitch coupling assembly is coupled to the hitch receiver and the vehicle by coupling the hitch coupling assembly to the hitch receiver.