M79: The Iconic "Bloop Tube" 40mm Grenade Launcher

Published on December 4, 2020
Duration: 15:01

This guide details the operational procedure for the M79 Grenade Launcher, often called the 'Bloop Tube.' It covers loading, firing, and safety protocols, emphasizing its break-action mechanism and unique sighting system. The M79 was developed as a portable, accurate, and effective infantry support weapon, utilizing a specialized 40x46mm low-pressure round.

Quick Summary

The M79 "Bloop Tube" is a 40mm grenade launcher developed post-WWII for infantry support. It features a break-action mechanism, a 40x46mm low-pressure round, and an effective range of 350-400 yards. Its design incorporated a high-low pressure system for reduced recoil and a unique sighting system for accurate targeting.

Chapters

  1. 00:00Introduction and History
  2. 01:06System Overview
  3. 02:08Ammunition Development
  4. 03:52Fusing and Propulsion
  5. 05:12High-Low Pressure System
  6. 06:58Design Simplification
  7. 07:57Mechanical Operation
  8. 09:12Sighting System
  9. 10:47Barrel and Stock
  10. 11:26Adoption and Production
  11. 12:20Limitations and Munitions
  12. 13:35Evolution to Under-barrel Launchers

Frequently Asked Questions

What is the effective range of the M79 grenade launcher?

The M79 grenade launcher has an effective range of approximately 350 to 400 yards. This range is suitable for its intended role of providing short-range infantry support.

How does the M79 grenade launcher operate?

The M79 is a simple break-action weapon. To load, the user opens the action, inserts a 40x46mm grenade, closes the action, and then fires. It features a spring-loaded extractor for spent casings.

What was the primary innovation of the M79 grenade launcher?

The primary innovation of the M79 was its integration with the 40x46mm low-pressure grenade system. This system was specifically designed for short-range infantry support, offering portability and accuracy.

Why was the M79 grenade launcher developed?

The M79 was developed post-WWII to replace the bazooka with a more portable, accurate, and effective weapon for infantry use, focusing on direct fire support rather than anti-armor capabilities.

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