This is probably a dumb question. In Massachusetts, when I buy a gun at an FFL - I must get the FBI Fingerprint Check and fill out the State Form.
What information is recorded by the State and Federal Government and which Agencies stores it? Who traces firearms by serial numbers....the State or the Feds? Just never understood?
Right now, only firearms sold through FFL dealers have to pass a NICs (Form 4473) test in all states, and in some states the state laws mandate that all transfers have to be through an FFL dealer. The feds regulate the FFL dealers and do not keep records of transactions, but the FFL dealers have to. If an FFL dealer goes out of business, those records go to ATF for storage, and are never lost. Now imagine extending this requirement to ALL buyers and sellers of firearms, if a Universal Background checks Bill were passed. Well this is impossible.
So the feds will say, well let us just require all states to do what california, for example, does already. All transfers must go through an FFL.
But what to do about the millions of unregistered guns in the USA? How do the feds know who owns them?
If they don't know who owns them, how will they verify that ALL guns are being sold after a NICS check? Well, the FEDs will come back and say: "We cannot implement your new law unless you allow us to
register all firearms". So the inevitable next step to mandating background check on ALL firearm sales will be a demand to Congress that all firearms be registered, without which the law will be impossible to enforce.
Registration is a VERY bad idea. Registration will not prevent a crime since a legal gun may be stolen and used by a criminal (like in the Newtown case) and of course a criminal will never register an illegitimate gun they may already own.
So, the only reason for registration is keeping tabs on legal gun owners, and if needed, confiscation of firearms.
Since the 2A was written to provide a well regulated (trained) populace that could be stronger than any standing army that a tyrant could raise, the LAST thing the armed populace wants is for potential tyrants to know who has what firearm. That is why this insidious "background checks for all sales" bill MUST be resisted. it will open the door to registration in a year or two.