The G3 is a 7.62mm battle rifle developed by the German arms company Heckler & Koch in collaboration with the Spanish-based gun company CETME. It was developed in the 195os and uses a 7.62x51mm NATO cartridge. The G3 and its variants are still produced and in service to this day. It is arguably the most successful military weapon of the present day, perhaps second only to the AK-47.
Like many other weapons, the G3 has many variants, thus making it extremely difficult to identify what specific G3 model was used by Dieter Stark. A police officer, during the San Diego Incident, in a helicopter planned to use one to attempt to kill the male Tyrannosaurus.