The Shoulder-Launched Multipurpose Assault Weapon (SMAW) is a shoulder-launched rocket weapon, based on the Israeli B-300, with the primary function of being a portable assault weapon (e.g. bunker buster) and a secondary anti-armor rocket launcher. It was introduced to the United States armed forces in 1984.  It has a maximum range of 500 metres (550 yd) against a tank-sized target.

It can be used to destroy bunkers and other fortifications during assault operations as well as other designated targets with the dual mode rocket and to destroy main battle tanks with the HEAA rocket. Operations in Afghanistan and Iraq saw a thermobaric rocket added (described as NE—"Novel Explosive"), capable of collapsing a building.