Abstract: An auxiliary sight device for shotguns, for anchorage on the barrel or double barrel of the shotgun, includes at least one swivelling item (7) with an articulation axis (9) in respect of the auxiliary sight (6), in which the swivelling item (7) is fitted with a pin (8), at the end opposite to its articulation, so that the direction of the line that visually links the shooter's eye with the end of the pin (8) has a divergence in respect of the axis of the barrel of the shotgun (3), adjustable in different predetermined positions.