Khalid uses a Computer Sighting System for its fire control, which is similar to that of the original Chieftains Improved Fire Control System. The vehicle also uses a Pilkington Optronics Tank Laser Sight.
The commander has a modified cupola that accepts the Pilkington Optronics No. 84 sight, which is a day and passive night sight, with a projector reticle imager, allowing 24 hour vision and gunnery capability for the commander. This sight is linked to the 120mm L11A5 gun and provides spot injection for the CSS
Sources:
Army Guide website Army Guide
Tank Encyclopedia website FV4201 Chieftain (See the section they have on Jordanian Chieftains)
Military Factory website Khalid (Sword) Main Battle Tank