A hand-held, manually-operated, surgical instrument used for the application (the attachment) of nonimplantable, single-use scalp clips to the margins of a scalp wound/incision during a surgical intervention on the cranium/scalp. Often referred to as a clip gun, it has a pistol-like design and holds an exchangeable, preloaded cassette of scalp clips that are fired into the scalp tissue, with the pull of a trigger, to approximate the margins of the wound/incision until it heals. This is a reusable device.