The nominal weight of the bomb is 1,000 pounds (450 kg), although its actual weight varies between 985 pounds (447 kg) and 1,030 pounds (470 kg), depending on fuze options,[1] and fin configuration.[2] The Mk 83 is a streamlined steel casing containing 445 pounds (202 kg) of tritonal high explosive. When filled with PBXN-109 thermally insensitive explosive, the bomb is designated BLU-110.
^Alan Warnes (19 March 2020). "Operation Swift Retort one year on". KeyMilitary.com. The JF-17s were each armed with two 1,000 pounds (450 kg) Mk83 Indigenous Range Extension Kits (IREKs) that became operational in 2017. Developed, integrated and qualified by Pakistan-based Global Industrial & Defence Solutions (GIDS), the IREK has a range of up to 37 miles (60 km). GIDS has converted Mk80-series general-purpose bombs into satellite-aided inertial navigation system (GPS/INS) guided bombs with a tail unit incorporating aerodynamic control surfaces and glide wings. It provides the JF-17 with a very potent day and night capability to engage a variety of targets.