Sighting instrument

An optical sighting instrument, comprising:

• a tubular lens housing having front and rear apertures and a longitudinal axis;
• a lens mounted within said lens housing and having a concave light reflecting surface facing said rear aperture;
• a light source located on said instrument and relative to said concave surface so as to generate a light point image viewable as a sighting mark at a point ahead of said surface by an observer looking through the sighting device from said rear to said front aperture;
• a circuitry located on said instrument, for connecting a power source to illuminate said light source;
• and
• means, connected to said lens housing, for mounting said lens housing to a firearm;
• said means for mounting comprising an elongated recoil bar positioned in longitudinal alignment with said lens housing axis, and shock resistant means connecting said bar about a pivot to said lens housing;
• said shock resistant means comprising said bar including an arcdate projection, said lens housing including a complementary arcuate recess receiving said projection, and means, attached to one of said lens housing and bar and acting against the other of said lens housing and bar, for setting vertical and horizontal angular positions of said rod relative to said lens housing, about said pivot.