 The most popular caliber for automatic grenade launchers in the west has been 40mm.The Soviet Union successfully fielded a 30mm grenade launcher, the AGS-17 during its war in Afghanistan, in 2002, Russia introduced a successor weapon, the AGS-30, and in 2017, AGS-40 Balkan.Traditional munitions for automatic grenade launchers include high explosive, fragmentation, and shaped charge for attacking light armored vehicles.