Silencers are regulated by the Federal Government and require BATF approval. Oregon does not ban the possession of silencers, IF, the person in possession has the required federal approval.
Keep in mind, that in order to own one of these devices, you need permission from you local chief law enforcement agent.
yes silencers are illegal in montana
Depending on who you are, no.
Depends on who is using them and for what.
check with the prosecutor's office
Silencers are illegal in SOME states for the general public, but only a few. See link below
Unfortunately yes. But there are ways around it.
if a gun has a threaded barrel, (required for a silencer) it is classified as an "assault weapon" and is illegal in California.
No, it is not illegal to shower with your clothes on in Oregon.
no
Slavery was never legal in Oregon, so it never needed to become illegal.
possesion of illegal firearms and silencers, i think there might be other stuff too
Not in Oregon or Washington, but how you use it can be illegal.