I believe it's a bunch of B.S. movie fiction. Our military has been issued the m9 since the late 80's and the m9 has seen true life, live or die combat all over the world, from Panama to Desert Storm 1 and 2 and Afganistan to name a few. I have yet to hear about any stories of enemy's attempting, much less, being successful in snatching slides off the m9 and are still here to talk about it. You would think if it were true and so easy to do it would have been attempted a time or two, but I wouldn't recommend it as it sounds like it's a good way to get waxed. The tactic of pushing the slide back to make the pistol unable to fire would seem more probable, but again another risky venture.