Mail Call Season 2 Episode release dates & where to watch

1. Grenade Launchers; Grape Shot; Shrapnel; D-Day Paratrooper Gear; Jet Packs

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.

2. Civil War Rifles; 1st Missile Sub; Navy Divers' Gear; Field Strip; Bowie Knife

American Civil War rifles from both sides; the first missile fired from the deck of a sub; deep-sea and crush-proof suits; breaking down a weapon; the Bowie knife; the evolution of a hedgechopper.

3. AVLB; Fulton Recovery System; Pilot Survival Kit; Trireme; Battleship Guns; Grapeshot

The Armored Vehicle Launched Bridge; the Fulton Recovery System; a pilot's survival kit; the ancient Greek warship Trireme; battleship guns; grapeshot.

4. Marine Weapons Training; Greek Phalanx; MiG-29; Hellcat Tank Destroyer

Simulated marksmanship training; fastest front-line combat jet and World War II tank; Greeks of ancient times use the phalanx; Civil War cavalry gear; dazzle paint.

5. Trebuchet; Troop Headcounts; BAR; Smart Bombs; Modern Parachutes; Boomerangs

Medieval catapults; platoons, companies and divisions; the Browning automatic rifle; smart bombs; parachutes; the weapon version of the boomerang.

6. LAV; Landing Craft; Doughboy; OPFOR; Chain Mail; Military Salute

Light Armored Vehicle; landing craft; World War I Doughboys; training troops; medieval chain mail; the military salute.

7. Deuce & a Half; Vietnam Gun Truck; World War II Household Fat; Missile Silos; C-17 Loadmaster; Scottish Kilts

Vietnam gun truck; World War II household fat; missile silos; C-17 Loadmaster; Scottish kilts.

8. Self-Propelled Artillery; Matchlock Musket; Airships; Blue Angels;Pirate Weapons

full title: Self-Propelled Artillery; Matchlock Musket; Airships; Blue Angels; Pirate Weapons; Depth Charges --------- Maneuverable artillery; musket; Navy airships; precision flying team; pirates; depth charges

9. Anti-Tank Rocket; Bazooka; HQ Tour; Tactical Operations Center; Downed Pilots

The bazooka's replacement; mobile command post; Air Force Pararescuemen; 21-gun salute.

10. Medieval Weapons; Lewis Gun; Carrier Pigeons; Gliders in Combat; Anti-Tank

Medieval weapons; World War I Lewis gun; carrier pigeons; gliders; anti-tank missile; ejection seats.

11. Amphibious Assault Vehicle; Jeep; Medieval Battering Ram; Urban Warfare; Ball Tu

Marines' 26-ton AAV stays afloat; jeeps; battering rams; urban warfare; World War II bombers; pictures on World War II airplanes.

12. Unmanned Aircraft; Bogey; 1st Combat Helicopter; Forward Observers

Experimental planes; unidentified aircraft; first combat helicopter; directing artillery fire; commando knife.

13. Newest Coast Guard Ship; Carrier Battle Group; Tanks; Sherman Tank; XM-29 Rifle Finale

Motor lifeboat; carrier battle group; Sherman tanks; futuristic rifle; voice mail.