I have owned and sold quite a few Class 3 firearms and still own some to include silencers. The former assualt weapon ban did not effect the buying/selling/owning of any weapon covered under the various Gun Control Acts (GCA) that have been in place since about the 1930s. It was actually quite a joke as the only thing banned was the semi-auto replicas of true assault weapons- all during this "ban" one could still purchase full auto weapons and silencers (assuming your state gave you that right).
As pointed out earlier the take by the BATF is that *IF* it can be modified to reduce the report of a real weapon by 3 decibles or more it is, technically, illegal. Also you do not need the $200 tax stamp to make the suppressor legal- that $200 tax is for what is called a Form 4 that allows a private citizen to legally own what is termed a Class 3 item (in this case anything full auto, a silencer, or what is termed a "short barreled rifle" (SBR) which is any rifle with a barrel length under 16". Short barreled shotguns, rifles converted to pistols, etc fall under the Any Other Weapon category which is a $5 fee. The license for making legal suppressors is a bit more expensive and time consuming.
For the old timers like me you may remember when paintball silencers were everywhere including advertised in magazines. The around 1989/90 the ATF took a look at the silencers being made when a few converted paintball silencers ended up being used in crimes. In the space of a year all of the paintball silencer manufacturers ceased production and magazine adds ended. This was due to the ATF issuing numerous cease and desist orders to the manufacturers as well as getting the word into the community that one ran the risk of a 10-year/$250,000 fine if you got caught with one. SO most people dumped them.
Now... I doubt the ATF would raid a paintball field or kick in ones door. However, it is very very easy to convert the typical paintball silencer to a real one by using certain easily purchased baffling material. Clamping them onto a real gun is a no brainer.
SO just be careful if you make one and dont be a moron who shoves it under the nose of local law enforcement is all as the above says it all. My advice is if an agent or cop ona field does take it- you just abandon it and chalk it up to experience. Do not fight it as you will lose.
ANd as an FYI- those Armotech "barrel extensions" are a violation of the BATF. They are so easily converted its not even funny.
As pointed out earlier the take by the BATF is that *IF* it can be modified to reduce the report of a real weapon by 3 decibles or more it is, technically, illegal. Also you do not need the $200 tax stamp to make the suppressor legal- that $200 tax is for what is called a Form 4 that allows a private citizen to legally own what is termed a Class 3 item (in this case anything full auto, a silencer, or what is termed a "short barreled rifle" (SBR) which is any rifle with a barrel length under 16". Short barreled shotguns, rifles converted to pistols, etc fall under the Any Other Weapon category which is a $5 fee. The license for making legal suppressors is a bit more expensive and time consuming.
For the old timers like me you may remember when paintball silencers were everywhere including advertised in magazines. The around 1989/90 the ATF took a look at the silencers being made when a few converted paintball silencers ended up being used in crimes. In the space of a year all of the paintball silencer manufacturers ceased production and magazine adds ended. This was due to the ATF issuing numerous cease and desist orders to the manufacturers as well as getting the word into the community that one ran the risk of a 10-year/$250,000 fine if you got caught with one. SO most people dumped them.
Now... I doubt the ATF would raid a paintball field or kick in ones door. However, it is very very easy to convert the typical paintball silencer to a real one by using certain easily purchased baffling material. Clamping them onto a real gun is a no brainer.
SO just be careful if you make one and dont be a moron who shoves it under the nose of local law enforcement is all as the above says it all. My advice is if an agent or cop ona field does take it- you just abandon it and chalk it up to experience. Do not fight it as you will lose.
ANd as an FYI- those Armotech "barrel extensions" are a violation of the BATF. They are so easily converted its not even funny.

Comment