A machine gun was a fully-automatic projectile weapon, available mounted or as a portable firearm, usually designed to fire cartridges of projectiles in quick succession from an ammunition belt or large-capacity magazine, typically at a rate of several hundred rounds per minute.
During World War II, mounted machine gun turrets defended bomber aircraft such as the Vickers Wellington. In the 2260s, James T. Kirk fired the turrets aboard a Wellington while escaping from a museum and three attacking Supermarine Spitfires. (TOS comic: "The Collector")
- Colt's Manufacturing Company
- Browning Arms Company