What is the function of the flash suppressor on the M240?

The function of the flash suppressor on the M240 is to reduce the visible signature of the weapon when fired. When a machine gun is discharged, the rapid combustion of gunpowder can create a significant flash at the muzzle, which can reveal the position of the shooter, especially in combat situations where concealment is essential. By minimizing this muzzle flash, the flash suppressor helps to maintain the element of surprise and reduces the likelihood of being targeted by the enemy.

Conversely, other features such as range accuracy, bullet exit speed, and sound suppression are not directly the purpose of the flash suppressor. Enhancements in accuracy generally involve other components of the firearm, while speed of the bullet is dictated by the ammunition and weapon design itself. Sound suppression is a separate consideration, usually addressed by suppressors rather than flash suppressors.