MACHINE GUN MOUNT U.S. Navy Petty Officer 2nd Class Jeremy A. Cieplich posts on a GAU-21/A .50 caliber machine gun mounted in a MH-60S Seahawk helicopter, before executing live-fire, close-air support training at Farallon de Medinilla Target Range, Northern Mariana Islands, Dec. 10, 2013. The MH-60s are currently forward deployed to the island of Tinian, coordinating with the U.S. Marine Corps during Exercise Forager Fury II. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 194801-Y-FWO96-835.jpg Photo Gallery