1) That's probably illegal, though I don't know all gun laws in the US. 2) This is probably a violation of Nexopia's acceptable usage policies, I defer to @Mark CM
Ah, Maybe dark_web to exact GPS coordinate of handgun seller's location. No guarantee you would live through the transaction or even find what you're looking for. I haven't read all laws in the United States although that is probably Illegal in North America. Not to mention the shipping anything through the mail unregistered without contents marked clearly and being intended for other uses probably wouldn't go unnoticed by all