Britain's Last Ditch: Wartime Changes to No4 Lee Enfield

Published on July 14, 2021
Duration: 14:52

This guide details the 'last ditch' wartime modifications made to the No4 Lee Enfield rifle, focusing on simplifying production to meet wartime demands. Expert Ian McCollum highlights changes to the rear sight, cocking piece, barrel rifling, and bolt release, emphasizing the shift from aesthetics to functionality. These modifications, driven by necessity after Dunkirk, significantly reduced manufacturing time and complexity.

Quick Summary

The 'last ditch' modifications to the No4 Lee Enfield, implemented around 1941-1942 after Dunkirk, prioritized rapid production over aesthetics. Key changes included simplifying the rear sight, altering the cocking piece, reducing barrel rifling to 2 grooves, and redesigning the bolt release for the Mark 1* variant to streamline manufacturing.

Chapters

  1. 00:00Wartime Context & Introduction
  2. 01:37Rear Sight Simplification
  3. 03:13Cocking Piece and Sight Protectors
  4. 05:12Butt Plates and Barrel Rifling
  5. 06:55Receiver Finish and Markings
  6. 08:31The No4 Mark 1* Modification
  7. 12:26Stock Material Changes

Frequently Asked Questions

What were the main 'last ditch' modifications made to the No4 Lee Enfield rifle during wartime?

Key modifications included simplifying the rear sight to a flip aperture, changing the cocking piece to a squared-off design, reducing barrel rifling from 5 to 2 grooves, and altering the bolt release to a simple receiver notch for the Mark 1* variant, all to speed up production.

Why did Britain implement 'last ditch' changes to the No4 Lee Enfield early in the war?

Following the equipment losses at Dunkirk, Britain prioritized rapid production of the No4 Lee Enfield over aesthetics. These 'last ditch' changes, occurring around 1941-1942, were essential to re-arm forces quickly and efficiently.

What manufacturing changes were made to the No4 Lee Enfield's barrel and bolt release?

Barrels were simplified from 5-groove to 2-groove rifling for faster production without sacrificing accuracy. The significant Mark 1* modification replaced the spring-loaded bolt release with a simple notch in the receiver rail, drastically reducing manufacturing complexity.

How did wartime shortages affect the materials used in the No4 Lee Enfield?

Due to shortages of traditional walnut, manufacturers switched to kiln-dried birch and beech for rifle stocks. Experiments were also conducted with laminated and sheet metal stocks, but kiln-dried wood proved the most effective alternative.

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