 The rifleman employ the M16A4 service rifle, the M4 carbine, the M203 grenade launcher, M249 squad automatic weapon (SAW), as well as the M27 Infantry Automatic Rifle, AT4 and LAW rockets.Riflemen are the primary scouts, assault troops, and close combat forces available to the Marine Air Ground Task Force.They are the foundation of the Marine infantry organization, and as such are the nucleus of the fire team in the rifle squad, the scout team in the LAR squad, scout snipers in the infantry battalion, and reconnaissance or assault team in the reconnaissance units.