BARREL CHECK U.S. Marine Corps Lance Cpl. Manuel E. Cuello looks down the barrel of his rifle for obstructions on Asad Air Base, Iraq, Sept. 28, 2008. Cuello is an armory custodian assigned to Company G, 2nd Battalion, 25th Marines Regiment, Regimental Combat Team 5. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 310440-S-QDS55-307.jpg Photo Gallery