RIFLE SIGHT U.S. Army Staff Sgt. Chris Thornburg adjusts the sights on an Afghan soldier's M16 rifle on Kabul Military Training Center, Afghanistan, March 17, 2009. Thornburg is assigned to Camp Alamo Mentor Group's Basic Warrior Training branch and mentors Afghan recruits as they learn to use M16s. SHARE IMAGE: Download Image: Full Size (0.06 MB) Photo By: VIRIN: 049484-J-LVM31-623.jpg Photo Gallery