This U.S. industry comprises establishments primarily engaged in manufacturing small arms ammunition. Manufacturing ammunition (except small arms)--are classified in U.S. Industry 332993, Ammunition (except Small Arms) Manufacturing; Manufacturing blasting and detonating caps and safety fuses--are classified in Industry 325920, Explosives Manufacturing; and Manufacturing fireworks--are classified in U.S. Industry 325998, All Other Miscellaneous Chemical Product and Preparation Manufacturing.