Bruen replaced earlier balancing tests with a history-focused analysis, making it harder for governments to justify gun restrictions without pointing to historical analogues.
A 2022 Supreme Court ruling that says gun laws are only constitutional if similar restrictions existed in early American history. Courts now compare modern gun laws to laws from the founding era.
Any federal effort to confiscate AR-15s would be tested against Bruen, and courts would examine whether similar large-scale firearm seizures existed in American legal tradition.
When a gun law is challenged, the government must identify historical laws from around the time of the Second Amendment's adoption that regulated firearms in a comparable way.
Federal judges weigh the modern law against historical evidence submitted by both sides, and laws without sufficient historical grounding can be struck down as unconstitutional.