In many states, it&#x27;s perfectly legal if it&#x27;s a private sale, ie., the seller isn&#x27;t a licensed dealer. It&#x27;s often dubbed the &quot;gun show loophole&quot;, despite not being limited to sales at gun shows.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Gun_show_loophole" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Gun_show_loophole</a>