What feeding system does the M249 squad automatic weapon primarily utilize?

The M249 squad automatic weapon primarily utilizes a belt-fed feeding system. This design allows the weapon to be supplied with ammunition in a continuous manner, which is particularly advantageous for providing sustained fire during operations. The belt-fed system enables the M249 to fire a large volume of rounds without the need to frequently change magazines or reload, making it effective in a squad-level support role.

Additionally, the M249 can also use magazine-fed systems, like 30-round M16 magazines, for versatility and ease of use when necessary, but the standard and most common method is the belt-fed approach. This capability supports the weapon’s role in a combat environment where rapid and sustained fire may be required for suppressive effects on enemy forces.