This QoS approaches are required to maximise the scarce resource given by MANETs due to the network's mobile nature, lack of centralised coordination, multi-hop communications, and resource constraints. The provision of QoS guarantee in MANETs has been the subject of much study. The packet delivery ratio, latency, throughput, and energy consumption are the most important QoS parameters. Adding quality of service to ad hoc multicasting is a difficult problem. In this study, we investigate the results of an NS2 simulation comparing the quality-of-service (QoS) metrics of three different multicast routing protocols: ODMRP, AM Route, and PUMA.