What is the maximum range of the M-4 Carbine?

That depends on which maximum range you want to know. The maximum range if you could shoot a bullet and it would not hit anything until it ran out of energy is 3600 meters (MAX Range). The maximum "effective" range for shooting at an individual or specific point is 500 meters (Point Target) or 600 meters at an area or group without hitting a specific target (Area Target ).