Not only are oppressors your fundamental right as a U.S. citizen, but there are also many benefits, including, but not limited to, saving your hearing. Mufflers, also known as silencers, are the hearing protection of the athlete of the 21st century. Despite widespread misunderstandings, oppressors do not remain silent. They are simply firearm silencers that work by trapping expanding gases at the muzzle and letting them cool slowly. Exposure to a single unsuppressed injection can and often leads to permanent hearing damage. ∗ 18 states have legalized the hunt for oppressors ∗ buying a silencer is much easier than most people think. Follow our step-by-step guide to make sure you don`t miss a beat. Mufflers are governed by the National Firearms Act (NFA) of 1934, which falls under the jurisdiction of the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF). To legally purchase or own a silencer, you must: Although it can still be heard, the suppressed shot helps mitigate noise complaints from those who live near shooting ranges and hunting grounds. Mufflers reduce the noise of a shot by 20 to 35 dB on average, which is roughly equivalent to that of earplugs or earmuffs.