I read many reviews and watched many videos about Griffin Armaments m4sd tac comp. Loved what i saw and read. So i purchased and installed this device. It performs very well. Muzzle rise is minimal, and less then ive ever experienced. But with all of the reviews, i never read or noticed anyone state 2 things. First, there is a rather strong concussion produced almost 360 degrees around the weapon when fired. At least on my build. Only if you stand behind someone else firing the rifle are you free from the pressure. Second, it is so extremely loud!! Comparable to an AK47. When i fire, it turns heads, causes everyone to cover their ears within 50 feet, and makes people back away. After i fire, im asked what caliber im shooting. (.223/5.56 to clarify) No one wants to stand within 10 feet of this being fired. Most go to doubled hearing protection when i pull it out now that they know. Its obnoxious. I fired the rifle one time without hearing protection.....never again. My ears were ringing for over 15 minutes. I have never worn hearing protection firing .223. (I know, thats not good) I would actually be concerned if i ever chose or had to use this in an emergency.
Has anyone else experienced this with this device? This is the first comp of this type that i have used. So my experience is limited to the m4sd. Im wondering if the combination of my parts add to the volume or if this occurs on every rifle this device is installed on. And, is there a similar device that performs as well, but is not so destructively loud?
Thanks.