Abstract: An apparatus that attaches to a long-gun-mounted flashlight and augments the flashlight with a secondary mechanical means of activation, so that the user can activate the flashlight in a more ergonomic, less awkward motion, with their support hand. The inventive apparatus includes a two-piece, clam-shell clamp which attaches the apparatus to the tailcap of a long-gun-mounted flashlight. A lever/paddle is attached to the two-piece clamp by way of a pivot pin, which affords the lever/paddle a swinging motion, and allows a protrusion on the underside of the paddle/lever to make slight contact with the host flashlight's tailcap activation button. When the paddle/lever is depressed, the pivot mechanism converts lateral activation pressure on the paddle/lever to forward activation pressure on the host flashlight's button, wherein activating the flashlight.