The GunCon, known as the G-Con in Europe, is a family of gun peripherals designed by Namco for the PlayStation consoles. The original controllers used traditional light gun technology, while newer controllers use LED tracking technology.
The original GunCon (left), GunCon 2 (middle), and GunCon 3 (right) for the PlayStation, PlayStation 2, and PlayStation 3 respectively.
The black GunCon controller for the PlayStation
GunCon 2, Japanese domestic model: a d-pad has been added to the rear of the gun
GunCon 3, Japanese domestic model: two analogue sticks have been added to the gun for advanced aiming/movement controls
A light gun is a pointing device for computers and a control device for arcade and video games, typically shaped to resemble a pistol.
NES Zapper
Light Phaser for the Master System
Atari XG-1