“How do you plan on collecting the firearms from those 1.4 million people?”
Pretty simple for most owners. Deadlines will be set and those that miss them will be fined, substantially. Most people don’t live in cash and have bank, savings, or other security accounts that can simply have fines extracted with a few simple keystrokes of a computer. Fail again to comply, fine doubles. Wages garnished will be another sneaking trick I assure you these tyrants have considered.
Will they open an office where the fines can be paid so people can save money on stamps?
Or will the US Postal Service become the agent of the infringers?