Abstract: A cam-operated rapid fire triggering device for use with a gun having a trigger includes a body member having a front and rear faces and the front and rear faces extending between a first and second ends, the body member having an elongate and planer configuration. The body member includes upper and lower edges, the upper and lower edges extending between the first and second ends, respectively. The body member defines a plurality of apertures separated from one another and positioned laterally between the first and second ends, each aperture extending between the first and second faces. The upper edge defines a plurality of alternating ridges and recesses positioned between the first and second end of the body member and configured to selectively bear against the trigger when the body member is pulled from side to side across the trigger.