When Did Suppressors Become Illegal?

The US National Firearms Act (NFA) of 1934 defined silencers and established regulations limiting their sale and ownership.

Are suppressors illegal in the US?

Silencers are legal but are regulated by federal law and on a state-by-state basis by the Nation Firearm Act (NFA) branch of the Bureau of Alcohol, Tobacco, Firearms, and Explosives (BATFE). Private citizens can legally purchase and possess silencers in 42 states* without a permit.

Why is it illegal to have a silencer?

New South Wales now allows recreational hunters to use of silencers (sound moderators). In other jurisdictions silencers are prohibited because they are seen as being too dangerous and associated with criminal activity. ... This Act seeks to weaken the regulation of silencers in America.