How the military's new M111 Grenade is going to change combat #specialforces #military #gear #news

Published on April 17, 2026
Duration: 2:02

The US Army has approved the M111 offensive hand grenade, the first new lethal hand grenade since 1968. This grenade represents a significant update from the long-serving M67 fragmentation grenade. The discussion highlights the two primary ways explosives injure or kill: overpressure (blast wave) and fragmentation. The M111's introduction signifies a modernization of infantry ordnance.

Quick Summary

The US Army has approved the M111 offensive hand grenade, the first new lethal hand grenade since 1968. This grenade updates the lineage of fragmentation grenades like the M67. Explosives cause harm via overpressure (blast wave) and fragmentation (shrapnel), with body armor offering no protection against blast waves.

Chapters

  1. 00:00Introduction of the M111 Grenade
  2. 00:05Army Times Article on M111 Approval
  3. 00:22Understanding Fragmentation Grenades
  4. 00:27The M67 Fragmentation Grenade
  5. 00:38Historical Grenade Evolution (Mark 2)
  6. 00:47How Frag Grenades Kill (Fragments vs. Pressure)
  7. 01:02Two Ways Explosives Cause Harm
  8. 01:08Overpressure (Blast Wave) Explained
  9. 01:15Blast Wave Dissipation Example
  10. 01:44Factors Affecting Blast Wave
  11. 01:51Body Armor and Blast Waves

Frequently Asked Questions

What is the significance of the new M111 grenade for the US Army?

The M111 offensive hand grenade is significant because it is the first new lethal hand grenade approved by the US Army since 1968, representing a modernization of infantry ordnance.

How does the M111 grenade differ from the older M67 fragmentation grenade?

While the M67 is a fragmentation grenade that kills with shrapnel, the M111 is also an offensive hand grenade. The video implies the M111 is a more advanced design, though specific differences in lethality mechanisms are not detailed beyond the general principles of fragmentation and overpressure.

What are the two primary ways explosives cause harm in combat?

Explosives cause harm through two main mechanisms: overpressure, which is the rapid expansion of gases creating a blast wave, and fragmentation, where the casing or other materials are propelled outwards as shrapnel.

Does body armor protect against the blast wave of an explosion?

No, body armor does not protect against the overpressure or blast wave of an explosion. The shock wave passes through body armor and can still cause injury or death.

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