U.S. Forces Command CSM Michael Grinston on inadequate training.
MK19 40mm Grenade Machine Gun
The MK19 is a reliable, portable 40mm grenade weapon system suited for mobile, tactical combat soldier units. General Dynamics Armament and Technical Products produces the MK19 MOD 3 40mm grenade machine gun, an air-cooled, blowback operated, belt-fed weapon. Highly portable within small soldier units, the weapon's high lethality and broad versatility make it the prime choice of U.S. warfighters as an essential weapon in both offensive and defensive operations.