What is the sustained rate of fire for the MK19?

The sustained rate of fire for the MK19 is commonly recognized as 40 rounds per minute (rpm). This figure is notable because the MK19, which is a belt-fed automatic grenade launcher, is designed for sustained engagement over prolonged periods while maintaining effective performance. The 40 rpm rate allows operators to achieve a balance between maintaining fire on target and managing ammunition consumption, ensuring that weapon systems operate efficiently without overheating or requiring excessive cool-down periods.

This sustained rate differs from the cyclic rate of fire, which indicates the maximum potential rate of fire under ideal conditions. Understanding the sustained rate is crucial for tactical planning and operational effectiveness, as it helps determine how long the weapon can be effectively employed in combat scenarios while considering factors such as barrel temperature and barrel life.