Mission:
Deter, and if necessary, compel adversaries by enabling individuals and small units to engage targets with accurate, lethal, automatic indirect fire.

Entered Army Service:
1983

Description:
A self-powered, air-cooled, belt-fed, blowback-operated weapon designed to deliver decisive firepower against enemy personnel and lightly armored vehicles. It replaces the M2 heavy machine guns in selected units and will be the primary suppressive weapon for combat support and combat service support units. The MK19-3 can be mounted on the HMMWV, M113 family of vehicles, 5-ton trucks, and selected M88A1 recovery vehicles.

Specifications:

Caliber:    40 mm
Weight:    72.5 lbs 
Max effective range:   2200 m (area target)

Manufacturer:
General Dynamics (Saco, ME) 

(U.S. Army Photo)