27 states require no background check. Several others (PA for example) split on type of fire-arm (long-guns = no check, handguns = check required, or similar).

27 states require no background check. Several others (PA for example) split on type of fire-arm (long-guns = no check, handguns = check required, or similar). Several others put the onus of coordinating through an FFL on the seller, the buyer just has to show up (though that does end up requiring a background check). So, I'll stand by "most" (though it's admittedly fewer states than I thought - I would have guessed ~35 had no limits).