Australia at least had the decency to pay market rates (or better) for their mandated turn-ins in 1996....
A hilarious story that came out of that whole mess was that they also would pay for items related to firearms, including magazines and other “feeding devices”. The price given for a ten-round SKS stripper clip was $2 AUD...some guy showed up at a turn-in center with two 55-gallon oil drums full of them. Yes, they had to count them all out and pay for each one.
That’s not hilarious, that’s very sad. Now look at em.