In MOST of the US, there is no requirement that a firearm be registered, with the exception of machineguns, sawed off shotguns, etc. IF your STATE requires registration, whether the gun is in working order or not does not matter. Without knowing where you are (and you did not tell us) we can't begin to guess. Sorry-
I know of no gun registeration in Maryland. No such thing as a unregistered gun.
in MOST of the US, there is no requirement to register a gun.
There is no Federal law requiring registration of guns. MOST states also do not require it. No penalty.
None. PA does not require gun registration- like MOST of the US does not.
Alabama - like most states - does not require registration of ordinary Title I firearms.
As long as you legally possess the gun, none. Texas does not require registration of ordinary Title I firearms.
Like most states, Georgia does not require registration of ordinary Title I firearms.
PA doesn't require registration ofordinary Title I firearms, to include handguns.
$75
Depends on if you are breaking the law.
What state?
Yes