Marines with II Marine Expeditionary Force practice loading and unloading inert rounds into the Non-Lethal, Tube-Launched Munitions System during their practical application training at Camp Lejeune, North Carolina, Aug. 14, 2014. Marine Corps Systems Command Optics and Non-Lethal Systems is fielding the system that sends non-lethal munitions out as far as 500 meters and uses an audible bang to deter a crowd or a person with mal-intent. Its intended use is for military checkpoints. - Marines with II Marine Expeditionary Force practice loading and unloading inert rounds into the Non-Lethal, Tube-Launched Munitions System during their practical application training at Camp Lejeune, North Carolina, Aug. 14, 2014. Marine Corps Systems Command Optics and Non-Lethal Systems is fielding the system that sends non-lethal munitions out as far as 500 meters and uses an audible bang to deter a crowd or a person with mal-intent. Its intended use is for military checkpoints.