What is the maximum range of the M-2 .50 Caliber machine gun?

The maximum effective range of the M-2 .50 caliber machine gun is approximately 6800 meters, which is why this choice is the correct one. This machine gun is designed for long-range engagement, and its capability to deliver effective fire at such distances makes it a vital asset on the battlefield. When used properly, the M-2 can engage both ground and aerial targets effectively, demonstrating its versatility and power.

While the figures for other choices exceed the recognized maximum range, it’s important to note that factors like the gun's mount, ammunition type, and environmental conditions can influence the overall effectiveness and range. The specified 6800 meters stands out as the operational limit that combines both accuracy and practical usability within standard combat scenarios, reinforcing the M-2's reputation as a heavy machine gun widely used by various military forces.