The big problem with that is - as pointed out - I absolutely can not afford to pay for something like that out of pocket.....
And yes the reason for refusing to take some of the suggested tests is because I don't want any problems if I do wish to buy another gun, on issues with the ones I already have....
And it's not that anyone has believed anything dangerous - I just know I don't know if it's there or not, but if it is, that would red flag me on such a thing - not necessarily prevent it, but at least look a lot closer - and (you guessed it) there goes MORE of my privacy - all to get a different model of something I already (legally) have a few of anyway.......And no problem at all - I use them to shoot at paper, sometimes cans, and (actually more recently than ever before because of the price of meat compared to a bullet) some game for food - so they are not really a weapon in the true sense of the word to me - rather a tool, nothing more.