It couldn't hurt to have one. I happened to not have to use one. I have only ran subsonic through it and have no intention of running supers through It so I was pleasantly surprised when I didn't have to do anything.
Check out my more recent video on this. I think some of the noise came from the AAC flash hider I used to run on the gun. I have since changed. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-apLE4mdWEGI.htmlsi=7FPOns9P6GmnCjWl
No not just you at all its very noticeable especially with electronic ear pro or on video like this. The AAC flash hider is like a tuning fork. I learned to tune it out a long time ago but now I'm switching to all Dead Air flash hider and they don't have that problem.
