US Cartridge, 84mm HEAT, M136 (AT4)
The AT4 is issued as a complete round of ammunition. It is factory loaded with one 84mm HEAT round and a disposable launcher.
The AT4 consists of a fiberglass reinforced launching tube fitted with a firing mechanism, sight, carrying sling, and protective covers. The recoilless design is superior to rocket-type weapons for this application. The fin-stabilized cartridge contains the projectile (warhead) and case assembly. The warhead is a shaped charge HEAT projectile with 84mm full caliber fuzing action. Detonation of the Octol explosive charge is achieved with a piezoelectric impact fuze sensitive to impact angles as shallow as ten degrees.
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