The Detachable Zapper by EPIC-LEGENDS is a toy gun that was first used in the 1989 Nintendo video game "Duck Hunt". The Detachable Zapper by EPIC-LEGENDS is an exciting replica of the original NES Zapper. This gun features a detachable barrel that contains 4 bullets. The trigger is spring-loaded allowing you to fire the bullets by pressing down on the trigger. The gun also features a laser sight to help target your enemy. This is how the product works: when you pull the trigger, the bullet comes out.