|The following is based on pre-release information for the canceled online game codenamed Project V13 and is not considered canon.|
The absolute BEST shotgun available! This should be called a “shotfun”! The best modern .12ga a shooter can buy (well, the only modern .12ga available), this is the model 42 with optional accessories mandatorily included. You get a suppressor, a scope and a beer coozie. If you’re looking for one gun to carry for any occasion, from clay shooting, Clay Jones shooting, to target plinking, this is the GUN FOR YOU!”— Crazy Ivan's description
Garry’s Modified Shotgun with Accessoires is a weapon mentioned in The Armageddon Rag.
Garry’s Modified Shotgun with Accessoires appears in The Armageddon Rag, Vol. 4. They were likely to appear in Fallout Online, Interplay's orignal Project V13, since abandoned in favor of an unrelated project by the same name.