Perhaps the best approach to universal background checks is

[flamin lib]

through firearms dealers. If 40% of firearms sales are through private transactions that don't currently require a background check were forced to go through a dealer for the check, traffic in gun stores would increase 40%. If a fee of $25-35 for the check were charged (the average for such requests now) it would be a boost to cash flow without inventory investment plus the buyer would likely purchase ammunition and accessories for his new toy.

A zero cost marketing device that would increase traffic 40%, provide a no-cost income stream and increase high profit accessory sales should be a no-brainer for any retailer.