Abstract: A day and night weapon sight includes a mounting base, a rod-shaped light guide fixed to the mounting base, and a self-luminescent capsule fixed to said mounting base vertically adjacent the light guide. Preferably, the light guide is formed of a rod-shaped fluorescently dyed transparent plastics material and the self-luminescent capsule includes a radioactive luminescent source (e.g., tritium).

Abstract: Gun sights have a general cross-sectionally semi-circular support member provided with a lengthwise extending arcuate concavity; and a rod-shaped light guide positioned within and fixed to the arcuate concavity of the support member. The semi-circular support member may itself be provided with a generally rectangularly shaped lower channel which is especially adapted to being attached to a gun's vent rib. The semi-circular support member may alternatively be provided as a domed protuberance from a longitudinally split cylindrical band which is adapted to being sleeved over a gun's barrel. One or more of the rod-shaped light guides may be affixed within individual lengthwise concavities, in which case there is most preferably provided a central lengthwise extending concavity therebetween.