Abstract: A firearm tool having a width adapted to securely fit within the handle of a pistol or firearm. A firearm tool made from a blank planar material has a punch on one end and a centrally disposed aperture. The width of the tool may be adjusted to accommodate different dimensions of a handle chamber within the handle of a firearm or pistol. The aperture mates with a portion of the barrel of a gun or pistol to provide additional leverage in utilizing the punch for removing press fit pins to completely disassemble the firearm. A screwdriver tab may be placed on the other end of the firearm tool. The firearm tool may be conveniently stored in the handle of a gun and therefore, is always accessible when needed in disassembling a firearm.