Get hands-on with some of the worlds fiercest firearms as LOCK N LOAD WITH R. LEE ERMEY takes viewers on a fascinating ride through the pathology of a featured weapon: where it came from, who thought of it, who improved it, its victories, its defeats, its impact on history and where it is now. In each episode of this HISTORY series, Gunnery Sergeant, drill instructor, Vietnam veteran, actor and former Mail Call host R. Lee Ermey will look at the inner workings of a weapon that made battlefield history, from machine guns and tanks, to pistols and rockets.