US Marines conduct a live fire training on a hills to learn the use of the M203 grenade launcher. An enormous amount of explosive round was fired during the .
US Marines conduct a live fire training on a hills to learn the use of the M203 grenade launcher. An enormous amount of explosive round was fired during the .
US Marines conduct a live fire training on a hills to learn the use of the M203 grenade launcher. An enormous amount of explosive round was fired during the .