Mail Call was a television program that appeared on the History Channel and hosted by R. Lee Ermey, a retired United States Marine Corps Staff Sergeant,. The show debuted on August 4, 2002 as part of ...

Learn how grenade launchers work; how a .30 caliber machine gun compares to a .50 cal; watch Ermey behind the wheel of a Flyer 21; and discover the origin of the word shrapnel. American Civil War ...