I've had training and have seen lots and lots of articles, videos, books, etc, where they give some technique you're supposed to do if you have a gun pointed at you from close distances. this seems like risky business if you ask me. Its true that if you react first to the armed person's weapon hand quickly enough they might have a slow enough reaction time where you can pull it off. Is there any one that has successfully disarmed an attacker that had a gun pointed at you? I suppose if you knew that they were really going to kill you, you might as well give it a try to disarm them. I'd probably be just messing myself and saying a few last prayers to think clearly.