Which characteristic applies to the Mk19?

The Mk19 is a grenade machine gun designed primarily for automatic fire and is capable of sustained rates of fire through a belt-fed ammunition system. This characteristic of being fully automatic allows the Mk19 to deliver a high volume of fire, effectively suppressing enemy positions, providing support in combat situations, and engaging targets at a distance. The belt-fed design means it can be operated by a crew, ensuring that ammunition can be continuously supplied to the weapon with minimal downtime.

The fully automatic operation of the Mk19 contributes to its effectiveness in various operational scenarios, allowing soldiers to engage multiple targets quickly without the need for manual cycling as seen in some other firearms. Overall, the combination of being fully automatic and belt-fed significantly enhances the weapon's versatility and lethality in combat settings.