In the United States, acquiring a firearm silencer requires payment of a special tax to the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF). This tax, currently set at $200, is paid using ATF Form 4 (Application for Tax Paid Transfer and Registration of Firearm) and represents a one-time cost for the lifetime of the silencer. The process also involves a thorough background check and registration of the device with the ATF.
This mandated process serves to regulate the ownership of these items, which are regulated under the National Firearms Act (NFA) of 1934. The NFA was enacted to control the transfer and possession of certain firearms, including silencers, short-barreled rifles and shotguns, and machine guns. While the cost might seem substantial, it represents a legal requirement for ownership and plays a role in the overall regulatory framework surrounding firearms in the country. This legal framework aims to balance individual rights with public safety concerns.