In which FM can you find procedures related to the M249?

The correct resource for procedures related to the M249 is FM 3-22.68. This field manual specifically addresses the operational capabilities, maintenance, and employment of the M249 light machine gun, outlining how soldiers should handle, operate, and maintain this weapon system. It includes detailed information on its setup, firing techniques, and troubleshooting methods, making it an essential reference for anyone training or preparing to utilize the M249 in various operational contexts.

Other manuals listed may cover different aspects of military operations or other weapon systems but do not focus specifically on the M249. For example, FM 3-22.9 pertains to the M9 pistol, while FM 3-23.25 discusses the M240 machine gun. Hence, they serve different purposes and needs for soldiers compared to FM 3-22.68.