Shell casings fly as a U.S. Marine fires a short round burst on his M-16 rifle. Shell casings fly as a U.S. Marine fires a short round burst on his M-16 rifle at the Udari Range in Kuwait on Aug. 11, 2005. The Interim Marine Corps Security Force Company from Naval Support Activity Bahrain is conducting fast sustainment training exercises that are designed to test the Marines' ability to conduct vehicle checkpoints, entry control points and mobile security patrols. SHARE IMAGE: Download Image: Full Size (0.09 MB) Photo By: VIRIN: 936866-L-ORY88-971.jpg Photo Gallery