Yes Spacemoose, and free-speech includes my right to question folks who appear to do their best to try and find loopholes.
If he wants to learn about scopes, gun parts, etc he can simply use Google and read about them. His questions have a different slant. There is no good sensible reason to want to get all those parts and just keep them aside for 3 years unless he wants a gun too. And then where will he play?
He was told what options were open to him; all involve parental participation. There is no sign he got it at all. How many flags do you need before you start to ask questions?