Machine Gun Terminology - LMG, MMG, SAW, LSW, HMG, GPMG

Published on December 29, 2017
Duration: 24:41

This video clarifies the distinct roles and historical evolution of machine gun classifications like HMG, MMG, LMG, GPMG, SAW, and LSW. It details how definitions shifted from cooling methods and weight to caliber and intended battlefield role, emphasizing the GPMG's versatility and the modern HMG's focus on heavy calibers for anti-materiel purposes.

Quick Summary

Machine gun terms like LMG, MMG, HMG, GPMG, SAW, and LSW define roles and capabilities. Historically, HMGs were heavy and water-cooled; modern HMGs are defined by large caliber. GPMGs are versatile, usable as LMGs or HMGs, while SAWs use intermediate cartridges for squad support.

Chapters

  1. 00:00Intro: Machine Gun Acronyms Explained
  2. 00:42Heavy Machine Gun (HMG) - Original Definition
  3. 02:23Medium Machine Gun (MMG) Definition
  4. 04:13Automatic Rifle Role & Design
  5. 08:15Light Machine Gun (LMG) Characteristics
  6. 11:20General Purpose Machine Gun (GPMG) Concept
  7. 16:12Squad Automatic Weapon (SAW) / LSW
  8. 19:18Heavy Machine Gun (HMG) - Modern Definition
  9. 21:30Outliers & Conclusion

Frequently Asked Questions

What is the difference between an LMG and an MMG?

An LMG (Light Machine Gun) is typically magazine-fed, bipod-mounted, and designed for portability, while an MMG (Medium Machine Gun) is usually belt-fed, fires full-power rifle cartridges, and is fired from a tripod, offering more sustained fire capability.

How did the definition of a Heavy Machine Gun (HMG) change?

Originally, HMGs were defined by their heavy, water-cooled, belt-fed design for sustained fire. The modern definition focuses on large caliber (12.7mm/.50 cal and up) for anti-materiel and long-range roles, often air-cooled.

What defines a General Purpose Machine Gun (GPMG)?

A GPMG is a versatile machine gun, like the MG42, that can serve multiple roles. Key features include a quick-change barrel and the ability to be used effectively on a bipod (as an LMG) or a tripod (as an HMG).

What is the purpose of a Squad Automatic Weapon (SAW)?

SAWs, such as the RPK or M249, provide automatic fire support to a rifle squad. They are designed to use the same intermediate cartridges as the squad's primary rifles (like 5.56mm) for logistical simplicity.

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