A U.S. Army M3A3 Bradley Cavalry Fighting Vehicle test fires its 25-millimeter chain gun. A U.S. Army M3A3 Bradley Cavalry Fighting Vehicle test fires its 25-millimeter chain gun while on a combat security patrol outside Ad Dwr, Iraq, on Nov. 17, 2004. The Bradley and its crew are assigned to Charlie Troop, 1st Battalion, 4th Cavalry Regiment, 1st Infantry Division. SHARE: Download: Full Size (0.03 MB) Credit: VIRIN: 871638-P-KCP82-532.jpg Photo Gallery