Try that in Massachusetts and you get ten to twenty in state prison.
In AZ a private seller can sell to anyone with an AZ drivers license, anywhere
Here in Nevada we have to use an FFL for private sales, I am confident that the local gun dealers conspired to make that change, trying to force Business to their stores. Luckily there are a number of home-based folks, veterans as well, that make that a simple and affordable step. Previously I limited my sell of guns to people with CCW, which minimized risk of who I might be selling to.