HGK (bomb)
The HGK guidance kit (HGK, ), developed by TÜBİTAK-SAGE, is a GPS/INS  guidance kit that converts bombs range from 227 kg (500 pounds) to 907 kg (2000-lb) Mark 80-series munitions into smart bombs. A CAMGÖZ (glass eye) laser seeker, resistant to countermeasures and with over 315 degrees of view angle, again developed by TÜBİTAK-SAGE, provides guidance. It enables precision strike capability in all weather conditions with long range (up to 24 km) at a dispersion of . The kit can be used with Mark 84, Mark 83 and Mark 82 bombs. References 

Air-to-surface missiles of Turkey
Aerial bombs
Guided bombs
Military equipment introduced in the 2000s