It should be noted that it was in 1993 and is in 2021 technically possible to have gun purchase criminal database background checking along with gun buyer anonymity with respect to the government.
One means would be to have each state government issue bar books to gun dealers covering all persons to which it has issued ID cards. There might be annual cumulative bar books, monthly cumulative update bar books and daily/dealer request cumulative bar fax updates.
Another means for 1993 technology would have the gun dealer would call an 800 number, give the operator the prospective buyer’s ID type, the five-digit zip code off the ID or the first three alphanumeric characters of the ID, say 545 in the case of my passport or G61 or 34275 in the case of my state ID card. The government would then fax back the associated bar list. If my passport number or last eight digits of my state ID card number was not on that list, I could then pay the dealer and walk out the door with my purchase. In 2021, an Internet website could make this far easier, and cheaper.
You certainly are eager to ask permission to exercise a right. What other ideas can you share with us?
Yes, in 30 seconds one could find out if you're an oathkeeper and deny the sale