As the spearhead of the Army's special operations forces, the Rangers are involved in the most dangerous and dirty business imaginable. Often operating in dangerous, close quarters fights, Rangers require weapons and equipment that allow them to travel light, be quick on their feet, and move with the greatest of stealth. Here are the weapons that help make the Rangers one of the U.S. Army's most effective fighting units: M4s, M16s, M240B machineguns, mortars of all calibers, grenade launchers, stun and flash grenades, Kevlar body armor, night vision equipment, and more.