The M61 Vulcan is a six-barreled rotary cannon used primarily by the United States military. It fires 20mm rounds at a high rate, capable of reaching up to 6,000 rounds per minute. This weapon is commonly mounted on aircraft, such as the F-16 Fighting Falcon and F/A-18 Hornet, providing air-to-air and air-to-ground firepower. Designed in the 1950s, the M61 Vulcan is known for its reliability and effectiveness in combat. It operates using a gas-operated mechanism, which allows for rapid firing without overheating. The cannon has become a standard in modern military aviation, serving various roles in air defense and ground support missions.