|The following is based on pre-release information for the canceled Fallout Online game by Interplay Entertainment (Codenamed Project V13) and is not considered canon.|
The absolute BEST .25 multi-chamber handgun available in the world! Except maybe for those Swedish bastards, they made a pretty good .25 multi-chamber handgun, but we lost the container during shipment and didn’t really have a chance to compare the two models. If you need extra firepower, in a handy and convenient form factor, the .25 caliber VOLCANOESQUE multi-chamber handgun is the pistol you’ve been waiting for. Fire four times faster! If you’re looking for one gun to carry for any occasion, this is the GUN FOR YOU! Really, we mean it. Except for long-range shooting.”— Crazy Ivan's description
The .25 VOLCANOESQUE multi-chamber Handgun is a weapon mentioned in The Armageddon Rag.
The .25 VOLCANOESQUE multi-chamber Handgun appears in The Armageddon Rag, Vol. 4. They were likely to appear in Fallout Online, Interplay's original Project V13, since abandoned in favor of an unrelated project by the same name.