Complex sentence: The OC-14 Groza is a 9mm bullpup combined assault rifle and grenade launcher designed by CKIB SOO (Central Design Bureau of Sporting and Hunting Weapons) in Tula, Russia, and manufactured by TOZ (Tula Weapons Plant, Russia).
Split into simpler sentences: The OC-14 Groza is a 9mm bullpup combined Assault rifle and Grenade Launcher. It was designed by CKIB SOO (Central Design Bureau of Sporting and Hunting Weapons) in Tula, Russia, and manufactured by TOZ (Tula Weapons Plant, Russia).