Some rifles (the Ferraris of rifles) are over $10,000. What if the owners don't sell their rifles "back" to the government (which never owned them)? What kind of penalty would you impose?
-- No penalty, because this is 100% voluntary?
-- Misdemeanor, like a traffic ticket?
-- Felony with jail time?
What if, say, only 1% of rifle owners sell their rifles. What is the next step? Any proposals?
Will you try to find out who owns the guns you want? If so, how?
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I've noted before that "buy backs" are great for gun owners.
-- Police department announces it will pay $300 per gun, so gun owners dig out old non-working guns worth $5 to sell them for $300, and the police buy them up, no questions asked. Typical Democrat government program...wasteful and totally doesn't achieve the objective, so more legislation will be needed, so keep motivating your base!!
-- Also, gun owners set up tables on the sidewalks outside the police station, and offer to value the guns people bring. Some people bring guns worth much more than $300, so those private gun buyers offer to buy them for more than $300, with cash.
In the end, usable guns are not removed, but shooters get some great deals (and sellers get better deals than they would from the police). There is video of this happening; google it if you want. Granted, that wouldn't happen in NYC, but it would happen in, say, Houston. Totally worthless. How would you fix that problem with buy "backs?"