An M4A1 carbine rifle sits on a table during Close

An M4A1 carbine rifle sits on a table during Close Quarter Tactics (CQT) training at Marine Corps Base Camp Lejeune, N.C., May 17, 2017. The CQT course provides Marines an opportunity to enhance their combat marksmanship skills and tactics while maintaining unit readiness and preparing for future operations. (U.S. Marine Corps photo by Lance Cpl. Jered T. Stone)