I have been shooting at night with 3rd gen night vision since 2002. I have not seen yet any flash hider made that will stop the tube from blinking out. The higher the caliber or the more powerful the worse it gets. Even with a 22 magnum or 17HMR where you really cant see much if any "flash" at night with your naked eye, the tube will still blink out for a second. The only thing I have ever been able to see bullet impact with {and this is on a 22 magnum} is a full blown suppressor. The Noveske pig can thing wont do it, it has to be a baffled suppressor and even then, again, I am shooting a 22 magnum...go up to a 223 with a suppressor and maybe, but I doubt it. One other thing, if you are using a infrared illuminator you will also get a white out due to the smoke reflecting the infrared at the muzzle. The suppressor I use is like 14 inches long and 1 1/4" in diameter so it has some "delay" in the lit up smoke to allow me to see the impact, but immediately it still turns white for a second unless the wind is blowing pretty good.