What does AT-4 stand for?

AT-4 stands for "Spigot Missile"

How to abbreviate "Spigot Missile"?

"Spigot Missile" can be abbreviated as AT-4

What is the meaning of AT-4 abbreviation?

The meaning of AT-4 abbreviation is "Spigot Missile"

What does AT-4 mean?

AT-4 as abbreviation means "Spigot Missile"