This is a method and apparatus whereby a nailing gun, designed primarily for vertical nailing, may be used safely and conveniently for horizontal nailing by the utilization of an auxiliary safety trigger, for the nailing gun, so located at a distance from the normal safety trigger, that an operator can utilize the nailing gun for horizontal nailing wherein the gun is held at a position of balance for such horizontal nailing, which position of balance, results in the least effort being required to handle the gun.