The MK-19 is an American automatic grenade launcher chambered in 40 mm, designed to engage personnel, lightly armored vehicles, and fortified positions at medium ranges. Its belt-fed mechanism enables sustained, high-volume fire.

The grenades produce strong fragmentation and blast effects, making the system effective against covered and clustered targets. The MK-19 can be mounted on tripods or vehicles, providing stability and increased accuracy. Its robust construction and straightforward maintenance make it dependable in field conditions.

In the simulator, the MK-19 is recreated with realistic firing-cycle behavior, recoil dynamics, and grenade-flight modeling. This allows operators to practice area fire, range adjustment, and effective employment of the weapon in infantry support roles.