Embodiments of the present invention assist in aiming indirect fire weapons and firearms. A housing having a display and containing electronics attaches to a firearm. The electronics contain performance information specific to at least one firearm and munitions used in that firearm. Selector switches allow an operator to select the correct firearm and round to be fired from the firearm. Then, as an initial step in aiming, the operator directs the end of the weapon at a target. Then the operator adjusts the position of the firearm while observing the display. The electronics monitor the relative orientation of the firearm and displays feedback on the display as the orientation of the firearm is changed by an operator. When the display indicates the firearm is correctly aimed, the operator discharges the firearm.

A self-compensating weapon sight includes a housing, partially reflective optics, through which a user may observe a target and receive visually displayed information simultaneously, a light source, for visualization of an aiming point to the user via the partially reflective optics, means for receiving a measure of the distance to the target a processor, for determining the adequate position of the aiming point, based on the distance to the target, and for controlling the light source to emit light so that the aiming point is visualized at the adequate position, wherein the light source is an array capable of selectively emitting light in well defined locations on its surface.

A self-compensating weapon sight includes a housing, partially reflective optics, through which a user may observe a target and receive visually displayed information simultaneously, a light source, for visualization of an aiming point to the user via the partially reflective optics, means for receiving a measure of the distance to the target a processor, for determining the adequate position of the aiming point, based on the distance to the target, and for controlling the light source to emit light so that the aiming point is visualized at the adequate position, wherein the light source is an array capable of selectively emitting light in well defined locations on its surface.