"Belt-fed" refers to a type of ammunition feeding system used in firearms, particularly machine guns. In this system, ammunition is linked together in a continuous belt, allowing for a steady supply of rounds to be fed into the weapon. This design enables sustained fire without frequent reloading, making it ideal for military applications. Belt-fed systems are commonly found in various military weapons, such as the M240 and M249 machine guns. The belts can be made of metal or fabric and are designed to hold multiple rounds, enhancing the weapon's efficiency during combat situations.