Tool and machine gun fan David Wiggins created the mod in response to another machine-nail-gun he saw online. He didn't think twice about it after having just picked up a new M16 (as you do).
Apparently is can drive a nail through a 2 x 4 at 200 yards. Not that you'd want to try that, of course. In any case, I highly doubt that DeWalt will be looking to bring this new line to market - at least not in Australia. Maybe in gun-loving America, but not down under.
Hit the link for even more pics of this king of the toolshed.