Adjustable sighting device for firearms

A sighting device for firearms comprising:

• a base;
• a first sighting lever arm pivotable relative to the base around a first pivot axis;
• a second sighting lever arm pivotable relative to the base and relative to the first sighting lever arm around a second pivot axis, wherein the second pivot axis extends in parallel to the first pivot axis;
• a rear sight device fixed on the second sighting lever arm;
• a first positioning device for adjusting a pivot angle of the first sighting lever arm relative to the base;
• and
• a second positioning device for adjusting a pivot angle of the second sighting lever arm relative to the first sighting lever arm and relative to the base;
• wherein the first positioning device has a rotating positioning element, which is fixed on the first sighting lever arm, is pivotable around a rotational axis extending perpendicularly to the first pivot axis, and is equipped with a plurality of alignment elements arranged distributed in different angle positions around the rotational axis;
• wherein the plurality of alignment elements each have a positioning tip oriented toward a bottom of the base and are fixedly alignable relative to the rotating positioning element such that a distance of the positioning tip to the rotating positioning element is variably adjustable in a direction parallel to the rotational axis;
• and
• wherein a buttress element elevated over a surrounding region covered by the rotating positioning element is provided on the bottom of the base to interact with one of the positioning tips at a time.