If confronted with a handgun during a violent encounter and you have to engage then you want to be offline and gain control. Grabbing the handgun gives you control of the weapon and it also can shut the weapon down by causing a malfunction if the opponent fires it. Of course in IRT we are causing damage to the opponent during the engagement. Following is link to a video from my blog demonstrating how the malfunction happens:
The Instinctive Edge
The Instinctive Edge