That's not the legal standard for a non-FFL.
The legal standard is that you cannot sell a gun to someone who you KNOW cannot own one.
You are not required to do any "due diligence" whatever that is.
You can suspect whatever you want, but if you don't "know" it, you have no responsibility.
The primary liability is on the person buying the gun who knows whether or not they can own one.
This may (or may not) be the letter of the law, but I wouldn't sell with complete confidence that I couldn't be prosecuted, based on this. If someone sells a firearm to someone they 'suspected' was a felon or non state resident (meaning they had some legitimate indicators, not just a vague suspicion based on him wearing a hoodie and gold teef), and this knowledge by the seller could later be proven, I wouldn't be at all confident the authorities wouldn't and couldn't prosecute.
As for due diligence ( "whatever that is"), yeah, it's a thing, look it up. If you don't even know what due diligence is, then why are you commenting on legal matters ??
due dil·i·gence
noun
LAW
- reasonable steps taken by a person in order to satisfy a legal requirement, especially in buying or selling something.
- a comprehensive appraisal of a business undertaken by a prospective buyer, especially to establish its assets and liabilities and evaluate its commercial potential.
And i never said we were required to do "due diligence", just that being able to demonstrate we took steps to ensure legality, could only be a positive thing. Right? Why do you think so many people here (me included) insist on seeing proof of age and state residence, and even a CCP, when we could (according to you) just hand over the weapon? Why even bother, as long as we don't actually "KNOW" the person is ineligible to own it ???