What is the sustained rate of fire for the M249?

The sustained rate of fire for the M249 is recognized as 85 to 100 rounds per minute. This rate is designed for scenarios that require accuracy and controlled engagements rather than rapid fire. During sustained fire, the operator allows for cooling time between bursts to prevent barrel overheating, which significantly contributes to maintaining weapon effectiveness and aiming precision.

Within this context, the choice indicating 100 rounds per minute most closely aligns with the official documentation regarding the capabilities of the M249 under sustained firing conditions. It is critical for a soldier to understand these firing rates when engaging targets to ensure optimal ammunition usage and to maintain the weapon's operational readiness.