There is some disagreement on this issue, but most experts seem to agree that the answer is yes – flash suppressors do make guns louder. This is because they effectively trap and redirect the gas and heat released by the gunpowder when a bullet is fired. That gas and heat build up until it eventually explodes, which creates the loud sound that you hear when a gun is fired.
So, while a flash suppressor may not make a gun’s muzzle blast any louder, it will make the overall noise of the gun much louder. Some experts believe that flash suppressors can make a gun’s muzzle blast twice as loud. So, if you’re looking for a way to reduce the noise of your gun, a flash suppressor is not the way to go.
Eric Answered question September 9, 2022