There is no definitive answer to this question because it depends on the specific flash suppressor in question. Some flash suppressors can make a gun louder, while others can help to reduce noise. It all depends on the design and construction of the particular suppressor. In general, however, flash suppressors tend to reduce the muzzle blast and signature of a gun, making it more difficult for an opponent to locate the shooter.
Stephen Answered question September 9, 2022