An AR15 in not a converted machine gun. It was also never adopted by any military, but intended for the civilian market. One can't use FMJ ammo (by law)for hunting because it doesn't expand and would lead more wounding/slow deaths of game as opposed to quick kills. Hunting ammunition is far more lethal than military ammunition, that is why expanding bullets are banned by the Hague Convention.

I love clueless gun-grabbers.