Ask Ian: What Rifles Were the M2-M13?

Published on September 27, 2022
Duration: 8:37

This video from Forgotten Weapons, hosted by Ian McCollum, clarifies the US Army's rifle designation system, explaining that numbers between the M1 Garand and M14 (specifically M2 through M13) were assigned to specialized training, survival, spotting, and sub-caliber rifles rather than standard infantry models. McCollum, demonstrating high expertise in US military firearms history, details several of these less common designations, providing context for their development and purpose.

Quick Summary

US Army rifle designations M2 through M13 were not for standard infantry use but were assigned to specialized firearms. These included .22 caliber training rifles (M2, M12, M13), pilot survival rifles (M4, M6), sub-caliber training inserts (M5, M7, M9), and spotting rifles (M8) used for aiming larger weapon systems.

Chapters

  1. 00:00Introduction and Viewer Question
  2. 00:31US Army Nomenclature System
  3. 01:38M2 Training Rifle
  4. 02:01Unused Designations (M3, M10, M11)
  5. 02:34M4 Survival Rifle
  6. 03:07M5 Sub-caliber Rifle
  7. 03:39M6 Survival Rifle
  8. 04:20M7 and M9 Sub-caliber Rifles
  9. 05:22M8 Spotting Rifle
  10. 06:30M12 and M13 Training Rifles

Frequently Asked Questions

What were the US Army rifle designations M2 through M13 primarily used for?

These designations were typically assigned to specialized firearms such as .22 caliber training rifles (M2, M12, M13), pilot survival rifles (M4, M6), sub-caliber training inserts (M5, M7, M9), and spotting rifles (M8), rather than standard infantry service rifles.

Why did the US Army use designations like M2 and M4 instead of continuing a direct line from the M1 Garand?

The US Army used these sequential numbers for specialized roles to differentiate them from standard infantry rifles. This system allowed for clear identification of training, survival, and auxiliary weapon systems within the military's complex inventory.

What is the difference between a spotting rifle and a sub-caliber rifle in military context?

A spotting rifle, like the M8, is used to aim a larger weapon by firing a projectile to confirm impact. A sub-caliber rifle, such as the M7 or M9 inserts, allows practice with a larger firearm using smaller ammunition, primarily for cost-effective training.

Which manufacturers were involved in producing these specialized US Army rifles?

Key manufacturers mentioned include Springfield Armory (M2), Harrington & Richardson (M4), Ithaca Gun Company (M6), and Remington and Winchester (involved with M12/M13 variants).

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