Even if there is no State law to comply with the manufacturers are worried about lawsuits from stupid people who somehow managed to have an "accident" with one of their guns. This has been going on for a long time. At one point Ruger had close to 46 lawsuits filed against them by stupid people who somehow managed to shoot themselves or a family member with a Ruger product. Lose enough of those lawsuits and you could very well be put out of business. And it's not just firearms - it's everything you buy today. Ladders. Power tools. Motor vehicles. Even an empty 5 gal. bucket has warning stickers on it showing a baby falling into it head first and drowning. We are becoming too dumb for our own good. Any civil attorney will tell you - business IS GOOD!!!