Smith & Wesson Light Rifle M1940

Published on March 2, 2014
Duration: 5:10

This entry details the Smith & Wesson Light Rifle M1940, a historically significant but commercially unsuccessful firearm. It covers its unique design features, the reasons for its failure in British military trials, its rarity, and its NFA classification. The analysis highlights its poor practical utility despite its intricate machining.

Quick Summary

The Smith & Wesson Light Rifle M1940, despite its name, was a practical failure due to its heavy construction from machined forgings and a complex magazine/ejection system that hindered malfunction clearing. The Mark 2 version also suffered structural failures with hotter ammunition. Despite its short barrel, it's NFA exempt as a Curio & Relic, making it a rare collector's item due to the cancelled British contract.

Chapters

  1. 00:19Introduction to S&W Light Rifle M1940
  2. 00:46Construction and Weight Analysis
  3. 01:04Magazine and Ejection System Issues
  4. 02:32Mark 2 Improvements and Failures
  5. 03:25British Contract and Historical Outcome
  6. 04:20Rarity and NFA Status Explained

Frequently Asked Questions

What made the Smith & Wesson Light Rifle M1940 a failure?

The S&W Light Rifle M1940 was considered a practical failure due to its excessive weight, stemming from its machined forging construction instead of lighter stamped parts. Additionally, its unique magazine and ejection system made clearing malfunctions extremely difficult, and the Mark 2 version suffered structural failures with hotter ammunition.

Why is the Smith & Wesson Light Rifle M1940 rare and NFA exempt?

The S&W Light Rifle M1940 is rare because the British military cancelled the contract after investing heavily, leading to most units being destroyed. Despite its short barrel, it's classified as a Curio & Relic under NFA rules, exempting it from certain regulations and allowing it to be sold legally to collectors.

What were the main design flaws of the Smith & Wesson Light Rifle M1940?

Key design flaws included its heavy construction from machined forgings, making it impractical for its 'light rifle' designation. The front-loading magazine and rear ejection chute complicated malfunction clearing. Furthermore, the Mark 2 variant's susceptibility to structural failure when using standard British 9mm ammunition highlighted critical design weaknesses.

What happened with the British contract for the Smith & Wesson Light Rifle M1940?

The British government invested $1 million in the S&W Light Rifle M1940 project but requested a refund due to performance issues and low delivery numbers. S&W settled by providing M&P revolvers at a discount, and the British military subsequently destroyed most of the rifles.

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