The U.S. provided the Lebanese army with militia weapon

Assafir puts it like this:

The hope of the arma­ment moun­tain of the U.S. to the Lebanese army deliv­ered an auto­matic rock­ets launcher. The U.S. already pro­vided the Lebanese with some­thing sim­i­lar in 1983 also owned by every mili­tia in Lebanon.