There is actually a dire need for non-lethal weapons in Afghanistan, and a 12-guage offers a good option for that.

Give a sentry 1-2 beanbag rounds followed by double ought, while a teammate covers with the M240. Way too many "warning shots" being used to blow Afghans off their motorcycles as they approach checkpoints, and way too many soldiers and lower level commanders taking heat for the same; with no real option for the soldier being offered other than "courageous restraint." Give the kid a real option, and he'll likely take it.