Abstract: Method and apparatus for aiming a missile firing weapon, such as a mortar, including a sighting device including a transit type aiming device with a mount means adapted to carry a reference plate rotatable in a generally horizontal plane on the mount means where the reference plate includes pivot means, generally centrally located thereon, aiming plate means superposed on the reference plate for rotation in a horizontal plane about the pivot means, releasable lock means to secure the aiming plate for rotation with the reference plate, vernier plate means superposed on the aiming plate for rotation about the pivot means where sight mount means are carried by the vernier plate means, lock means to secure the vernier plate for rotation with the aiming plate means; adjusting means to selectively rotate the vernier plate about the pivot means relative to the aiming plate, tubular sight means carried by the vernier plate to determine an aiming line of sight and missile firing weapon means having weapon sight means

Abstract: The present invention provides an arrangement useful in sighting a missile firing weapon, such as a mortar, from a fixed emplacement or from a platform on a weapon carrying vehicle which can include a ring, marked with selected angular indications such as azimuth or mil readings (6400 mils equals 360.degree.), where the weapon is mounted in the center of the ring. The weapon is provided with a sighting mechanism to aim the weapon in accordance with sightings indicated on the ring.In addition, a light source can be provided which is particularly useful to aim the weapon at night. The light source includes a tubular member having at least two transverse walls spaced generally parallel therein where a slit is provided in each wall with slits located in longitudinally aligned relation and a light source is provided to direct a beam of light through the cooperative slits to the aiming means.