A U.S. soldier fires an MK-19 grenade launcher during a live-fire exercise on the Grafenwoehr Training Area in Germany, Feb. 27, 2015. A U.S. soldier fires an MK-19 grenade launcher during a live-fire exercise on the Grafenwoehr Training Area in Germany, Feb. 27, 2015. SHARE: Download: Full Size (2.39 MB) Tags: Photo Essays Credit: VIRIN: 970485-B-PEK61-121.jpg Photo Gallery