Anti-barrel rockets, nicknamed Stovepipes, were a kind of rocket developed during the Second Great War by the Huntsville Rocket Society in 1943 and distributed to Confederate infantry. They fired an unguided projectile equipped with a shaped-charge explosive warhead that could penetrate the armor of any existing U.S. barrel, including the late-model Mark III. Their effective range was limited to a few hundred yards, which made the infantry utilizing them vulnerable to machine-gun fire from their intended targets. In urban warfare situations, stovepipes also proved effective for destroying small buildings such as individual homes.
"Stovepipes" is also the nickname of the real-life bazooka, which the "anti-barrel rocket" is based on.