This 60 Year Old Tank Gun Fires Missiles... 152mm M81 Gun Launcher

Published on January 14, 2026
Duration: 12:09

This video explores the 152mm M81 Gun Launcher, a unique weapon system designed for the M551 Sheridan and M60A2 tanks, capable of firing both conventional rounds and the Shillelagh missile. The expert-level presentation details the demilitarization process of a 1968 Watervliet Arsenal unit, showcasing various ammunition types including training projectiles, high explosive rounds, and historical naval shells.

Quick Summary

The M81 Gun Launcher was a 152mm weapon system for the M551 Sheridan and M60A2 tanks, capable of firing both conventional rounds and the Shillelagh guided missile. Demilitarization, often involving torch cuts, ensures safety for civilian ownership.

Chapters

  1. 00:00Unloading the M81 Gun Launcher
  2. 02:38Markings and Historical Context
  3. 04:38Technical Inspection and Demilitarization
  4. 06:475-inch Naval Ammunition
  5. 08:01152mm Training Projectiles
  6. 09:57155mm Chemical Munitions
  7. 11:37152mm High Explosive Shells

Frequently Asked Questions

What was the M81 Gun Launcher?

The M81 Gun Launcher was a 152mm weapon system designed for the M551 Sheridan light tank and the M60A2 'Starship' main battle tank. It was unique because it could fire both conventional 152mm rounds and the Shillelagh guided missile.

How was the M81 Gun Launcher demilitarized?

Demilitarization of the M81 Gun Launcher typically involves torch cuts made to the chamber and barrel. This process renders the weapon system safe for civilian ownership, collection, or museum display, ensuring it cannot be fired.

What types of ammunition could the M81 Gun Launcher fire?

The M81 Gun Launcher was designed to fire a variety of 152mm ammunition, including conventional high-explosive tracer rounds (like the XM657 HE-T) and target practice tracer rounds (like the M411A3 TP-T). It could also fire the Shillelagh guided missile.

What is the significance of Watervliet Arsenal markings on ordnance?

Markings from Watervliet Arsenal (WVT) indicate that the ordnance was manufactured or refurbished at this historic US Army facility in Watervliet, New York. These markings provide valuable historical context and provenance for collectors and historians.

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