Patchett Machine Carbine Mk I: Sten Becomes Sterling

Published on February 14, 2024
Duration: 13:51

This guide details the disassembly and comparison of the Patchett Machine Carbine Mk I, a precursor to the Sterling submachine gun. It highlights key external and internal differences between the Patchett and the Sterling, including grip materials, magazine wells, bolt design, and fire control assembly. The information is presented by Ian McCollum, a recognized expert in historical firearms, offering high authority and technical detail.

Quick Summary

The Patchett Machine Carbine Mk I, designed by George William Patchett, is a precursor to the Sterling submachine gun. It features a 90-degree magazine well for Sten magazines, aluminum grips, and milled parts, contrasting with the Sterling's curved magazine, plastic grips, and stamped components. Its design aimed for a lighter, cheaper alternative, incorporating elements from the Sten and Lanchester.

Chapters

  1. 00:00Introduction: Patchett Mk I & Designer
  2. 01:18Design Origins & Requirements
  3. 03:54External Comparison: Patchett vs. Sterling
  4. 07:22Manufacturing and Finish Details
  5. 08:26Internal Mechanics and Disassembly
  6. 11:30Adoption History: From Patchett to Sterling

Frequently Asked Questions

What is the Patchett Machine Carbine Mk I?

The Patchett Machine Carbine Mk I is an early submachine gun design by George William Patchett, serving as a direct predecessor to the iconic Sterling submachine gun. It incorporates features from the Sten and Lanchester designs.

What are the key differences between the Patchett Mk I and the Sterling submachine gun?

Key differences include the Patchett's 90-degree magazine well for Sten magazines, aluminum grips, and milled parts, compared to the Sterling's curved magazine, plastic grips, and stamped components. Internal receiver geometry was also reinforced in the Sterling.

Who designed the Patchett Machine Carbine Mk I?

The Patchett Machine Carbine Mk I was designed by George William Patchett, an arms designer who had previously worked for companies like FN and Brno before developing this lighter, cheaper design for the Sterling company.

Why wasn't the Patchett Machine Carbine Mk I initially adopted by the British military?

Despite successful trials, the British government initially declined adoption due to a significant surplus of Sten guns remaining after the end of World War II.

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