U.S. Army Spc. Alan Marrs prepares to fire the HK M320 40mm grenade launcher at the range during skills training exercise in Kunduz province, Afghanistan, July 3, 2013. Marrs is assigned to the 1st Infantry Division's 6th Squadron, 4th Cavalry Regiment, 3rd Brigade Combat Team. U.S. Army Spc. Alan Marrs prepares to fire the HK M320 40mm grenade launcher at the range during skills training exercise in Kunduz province, Afghanistan, July 3, 2013. Marrs is assigned to the 1st Infantry Division's 6th Squadron, 4th Cavalry Regiment, 3rd Brigade Combat Team. SHARE: Download: Full Size (0.82 MB) Tags: Photo Essays Credit: VIRIN: 091699-K-WKC55-705.jpg Photo Gallery