I’ve heard that gun background checks are supposedly destroyed after 6 months. However, a friend purchased a collectible Colt on Gunbroker. Two years and an out-of-state move later, ATF contacted him and confiscated the firearm. A “routine” review of purchases found the item. My theory is that these records never go away, they just get renamed and put in another file category.
And you best not object, if you know what's good for you.
You might beat the rap, as they say, but you won't beat the ride.