I'll expand on these thoughts later maybe.. but you can choose who to sell to or buy from. The law, pesky as that gets, says that you only have to ensure (reasonably = define that for your self, you're gown ups aren't you?) that you are selling to someone that can legally possess that weapon.

None of this bill of sale, copies of drivers licenses and the other presumptuous crap that some of you come up with as pre-requisites of your sales gives you a damn bit of "protection", uh the ignorance amazes even the dull witted masses, where are you guys from Kalifornia? I'm sure the less enlightened and educated will go about their semi-informed lives and buy your stuff. Learn the fooking law boys, stop presuming that a bill of sale is your get out of jail free card. Sweet mother of gawd, ask your momma's for your testies back, educate yourselves, make adult decisions and decern who you are or are not willing to sell to based on your own ability to assess who you feel comfortable with conducting business with.

God bless the errornet and those who seek it's wisdom... I for one will not buy your over priced firearm and submit to your weak minded comfort papers. If you cannot educate yourself and decide without the need for an imaginary baby blanket, aka bill of sale and buyers personal info.. then I have no desire in any way shape or form to give you anything other than my scorn.