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There is no registration of firearms, other than NFA licenced firearms, in Virginia.
There is no gun registration in Kentucky, except in instances of NFA firearms (short barreled rifles, full auto firearms, suppressors, AOWs, etc.). If you don't have a firearm which falls into the Title II NFA category, there's nothing to register.
Depends on the laws in your state or country. In the US, firearms registration is virtually nonexistent, save for NFA regulated firearms, and in the state of California (which, even then, is very limited in the scope of what gets registered).
Yes. You can own both NFA registered transferrable full auto firearms, and semi auto clones.
No, only NFA regulated items such as machine guns, short barreled rifles/shotguns, etc.
Federal law is 18.In the US, 18 for regular, Title I firearms, 21 for NFA regulated Title II firearms (short-barreled rifles, full auto rifles, etc).
Only NFA tax stamped firearms (machine guns, short barreled rifles/shotguns, destructive devices, etc.).
You have to first fill out the NFA paperwork (which any licenced NFA dealer can help you out with). That'll take a couple months while it's scrutinised from the federal level down to the county level, but, once you get approval, you buy your silencer, pay the $200 transfer tax to the BATFE for your tax stamp, and have an NFA licenced firearms dealer receive it for you.
It is possible to be approved for an NFA tax stamp in Indiana.
You will have to find an NFA dealer, if you're able to find a transferrable one at all. The importation of full auto firearms ceased after 1968, and the domestic manufacture of full auto firearms for the civil market (including 922r parts count compliant conversions of imported firearms) ceased after 1986.
in 1965 the NFA joined with FFA
Oregon doesn't have registration of Title 1 (i.e., "normal") firearms - only NFA items must be registered. You can own as many as you can afford.