What defines a run-away gun?

A run-away gun is characterized by the phenomenon where firing continues after the trigger has been released. This situation typically arises from a malfunction or failure in the weapon's mechanism, such as a stuck sear or a failure in the firing system that causes the weapon to continue firing automatically without further input from the user.

In practical terms, a run-away gun presents a significant safety hazard because the operator loses control over the rate of fire and can inadvertently cause harm to themselves, others, or property. Understanding this definition is crucial for gun safety and handling, as it emphasizes the need for immediate corrective measures to resolve the issue when a firearm continues to discharge rounds without the trigger being actively engaged.

Other answer choices might present aspects related to firearm operation, but they do not capture the essence of what makes a firearm a run-away gun, which is fundamentally about the unintended continuation of firing.