The riflemen 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 the AT-4 and LAW rockets. Riflemen are the primary scouts, assault troops, and close combat forces available to the MAGTF. 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. Noncommissioned officers are assigned as fire team leaders, scout team leaders, rifle squad leaders, or rifle platoon guides. The mission of the Marine Corps rifle squad is to locate, close with and destroy the enemy by fire and maneuver and/ or repel enemy assault by fire and close combat.