What is the maximum effective range of an M4 rifle?

The maximum effective range of an M4 rifle is indeed characterized by the distances it can effectively engage targets. For point targets, which require precision aiming to hit a specific target, the effective range is typically around 500 meters. This distance reflects the rifle's capability to achieve accurate hits with a trained marksman. For area targets, which are larger and do not involve as precise aiming, the effective range extends to approximately 600 meters. This distinction accounts for the difference in engagement strategies, with area targets allowing some leeway in accuracy due to their size.

While the other options present various distances, they do not align with the accepted specifications for the M4's performance in terms of effective engagement ranges. The specific figures provided in the correct answer are aligned with operational effectiveness guidelines as used by military personnel, which reflects a well-rounded understanding of the weapon's capabilities in the field.