Gun registrations used to confiscate guns in New York City

This is the reason that many gun owners fear registrations.  From Fox News:

The New York City Police Department (NYPD) is sending out letters telling gun owners to turn over their rifles and shotguns — or else face the consequences. 

New York City’s ban on rifles and shotguns that hold more than five rounds is now being enforced, according to a letter the NYPD is sending out to targeted city gun owners. . . .