O i c, yea I thought it was a flash suppressor for some reason.
Anyways , I took it to the range today and the sound blast was propelled all forward instead of spreading out to the sides, it helps quite a bit actually, made the shot crackle all the way down the field... ( some other people were shooting 7.62x39 ) but mine with the XB1 equipped sounded alot different . All I can say is that it helps in making the other shooters on your side more comfortable and be able to bear with the noise.
It did not decrease the muzzle rise though.
But it does look great on the gun.