1. A firearm aiming system comprising: a user display; an imaging system comprising an imaging sensor and an image processor, said imaging system adapted to detect at least one potential target in a Field of View (FOV) of said imaging sensor and to display, on said user display, an indicator indicating a direction in which the firearm is pointed; user controls for locking on one of said at least one potential target which is viewed on said user display even near said indicator, such that when said user controls are actuated, said detected potential target is converted into a locked-on target; and an Epsilon Logic Module adapted to automatically calculate an epsilon area around a lock-on point of said locked-on target, wherein said epsilon area is a target area within boundaries of said locked-on target that is projected on said user display, said epsilon area having variable dimensions adapted to dynamically change based even on an irregular shape of said locked-on target and a likelihood of hitting said locked-on target.