I have bound T with fire/trigger, since that's the only key I could think of, that was the closest to one of my hands and also unused.

Very annoying and happens every time I aim down sights by accident, while running with my rifle pointing down. And since the only quick-fix I found for this is to sit down, or use that animation binded to V I'm forced to jog slowly while bullets are flying around my ear, or die trying to break this animation to sprint.