The pins in my shop are used by real military forces, nothing is invented
The pin measures 2.5cm in diameter
The United States Navy Fighter Weapons School, commonly called Top Gun, is the combat training school for pilots of the United States Navy. It was founded on March 3, 1969 at the Miramar Naval Air Station in California, to train embarked pilots in air combat tactics, given the lack of experience of the crews who flew over Vietnam. The school was initially equipped with A-4 Skyhawk and F-5 Freedom Fighter aircraft to train the crews of the F-4 Phantom II, including the first American aces in the Vietnam War: Randy Cunningham, known as "The Duke", and Willie Driscoll. In the 1970s and 1980s, the F-14 Tomcat and F/A-18 Hornet aircraft were adopted, while the school's instructors continued to fly the A-4 and F-5, but also added the F-16 Fighting Falcon, to better simulate the performance of the new Soviet 4th generation fighters, the MiG-29 Fulcrum and the Su-27 Flanker.