Another lesson in firearms history as Forgotten Weapons feature the Krešimir grenade launcher made in Croatia... "The Kresimir is honestly the most bonkers weapon I have come across in a long while. Made by IM Metall in Croatia at the beginning of the Croatian Homeland War circa 1991, this is a semiautomatic grenade launcher. Most grenade launchers fire a big cartridge with an explosive warhead, but not this thing.