Zeroing Weapons U.S. Air Force Capt. Ryan Kiggins, left, and other personnel observe as personal security detail members zero-in their weapons at a range near Kabul, Afghanistan, Dec. 8, 2015. Zeroing weapons is crucial for accurate marksmanship. Kiggens is a security forces member assigned to the Train, Advise, Assist Command-Air . U.S. Air Force photo by Staff Sgt. Corey Hook SHARE: Download: Full Size (0.76 MB) Tags: train, kabul, advise, photo essays, weapons training, assist command, afghanistan, all images, security forces Credit: Staff Sgt. Corey Hook VIRIN: 151208-F-ZU607-085.JPG Photo Gallery