The Mk 19 40mm Grenade Launcher (commonly just known as "Mk 19") is a belt fed, blowback operated, air cooled, crew served, fully automatic grenade launcher. It fires 40 mm grenades at a cyclic rate of 325 to 375 rounds per minute, giving a practical rate of fire of 60 rounds per minute (rapid) and 40 rounds per minute (sustained). The weapon operates on the blowback principle, which uses the chamber pressure from each fired round to load and re-cock the weapon. The Mk 19 is able to launch its grenade at a maximum distance of 2,212 meters, though its effective range for a point target is about 1,500 meters, since the large rear leaf sight is only graduated to 1,500 meters. It is notably seen as one of the primary weapons used in the arsenal of the AAV-7A1 AMTRAC.
Battlefield 2: Modern CombatEdit
The Mk 19 appears in the mission Thunder Run on the turret of a AAV-7A1 AMTRAC, dropping off marines as M1A2 Abrams tanks move through the PLR artillery camp, as well as in Rock and a Hard Place, again on the turret of a AAV-7A1 AMTRAC.
The Mk 19 is used with a 7.62mm Machine-Gun by the gunner of the AAV-7A1 AMTRAC, the Mk 19 is very good at suppressing enemy infantry and destroying enemy buildings and infrastructures while the Machine Gun is often used to kill infantry at close range. The Mk 19 has large effect against vehicles like the T-90A due to it's high rate of fire coupled with the AAV-7A1's Reactive Armor and is also very effective against lightly armored vehicles and jeeps.
It is also mounted on the Phoenix in the recent Battlefield 3: Aftermath DLC as a turret along with the M2 Browning. It is very powerful taking only 1-2 shots to kill Infantry. Despite this, unlike the one mounted on the AAV-7A1 it offers the operator little to no protection from enemy fire.