First to the Fight: The Marines' Reising M50 SMG

Published on November 4, 2022
Duration: 21:18

The Reising M50 SMG, designed by Eugene Reising, was adopted by the USMC as a cheaper, lighter alternative to the Thompson SMG, firing from a closed bolt for improved accuracy. Despite its innovative design, it suffered severe reliability issues in combat, particularly in the Pacific, due to rushed production and sensitivity to environmental conditions. These failures led to its early replacement by other firearms by late 1942.

Quick Summary

The Reising M50 SMG was adopted by the USMC as a cheaper, lighter alternative to the Thompson, firing from a closed bolt with delayed blowback. However, it suffered critical reliability issues in combat due to rushed production and sensitivity to dirt, leading to its early replacement.

Chapters

  1. 00:00Introduction: Eugene Reising's Background
  2. 01:24Reising M50 vs. Thompson SMG: Design Goals
  3. 02:59USMC Adoption & Variants (M50, M55, M60)
  4. 05:32Technical Features: Early vs. Late Patterns
  5. 08:07Combat Performance & Reliability Issues in the Pacific
  6. 10:21Phasing Out and Legacy of the Reising SMG

Frequently Asked Questions

What was the main reason the US Marine Corps adopted the Reising M50 SMG?

The USMC adopted the Reising M50 early in WWII, particularly for the Paramarines, seeking a more compact, lightweight, and significantly cheaper submachine gun than the Thompson SMG.

What were the primary design differences between the Reising M50 and the Thompson SMG?

The Reising M50 fired from a closed bolt for better accuracy, used a delayed blowback system, was lighter, and much cheaper to produce than the open-bolt Thompson SMG.

Did the Reising M50 perform well in combat?

No, the Reising M50 suffered severe reliability issues in combat, especially in the Pacific Theater like Guadalcanal, due to rushed production, lack of parts interchangeability, and sensitivity to dirt.

What technical features distinguished the Reising M50?

Key features included its delayed blowback mechanism, closed-bolt firing, a unique charging handle under the forend, and distinct barrel fins (29 on early, 14 on late models).

Related News

All News →

More Reviews Videos You Might Like

More from Forgotten Weapons

View all →