http://www.realclearpolicy.com/articles/2015/07/17/the_rise_of_concealed_carry_1369.html
Purposefully posted from my iPad, to show that, yes, Virginia, you CAN in fact hot-link from any iJunk device...
ETA: And now I'm back on my computer, because typing on a phone/tablet/whathaveyou kinda sucks :)
I simply searched the link in question on google, but instead of clicking on the link, I tapped and held it, until a menu popped up. Select Copy. Then, in your reply window on AR15, click the hyperlink button (second from the right). Click OK to use the link as the title, then erase the leading http:// , tap and hold in the text dialog until the magnifying glass appears, then let go, and you get the option to paste. Paste in the link, click OK, and you're done.
OR, alternatively, manually put in the [ and the url=, then paste the link, close with a ], paste the link again, and close with a [, then a /url, then a ]
It's a little more work, but it CAN be done.