The Korsac EM1 - a British/Polish Bullpup FG-42

Published on June 26, 2017
Duration: 16:36

The Korsac EM1 is a rare post-WWII bullpup adaptation of the German FG-42, developed in Britain by a Polish designer. Only two prototypes were built between 1945-1947. It retains the FG-42's controls and firing modes (closed bolt semi-auto, open bolt full-auto) but features a bullpup configuration and uses modified ZB-26 magazines holding 18 rounds of 8mm Mauser. Despite its innovative design, development ceased due to better-performing bullpup projects at Enfield.

Quick Summary

The Korsac EM1 is a unique post-WWII bullpup light machine gun, a British adaptation of the German FG-42 designed by Polish emigre Korsac. Chambered in 8mm Mauser, it uses modified 18-round ZB-26 magazines and fires from a closed bolt in semi-auto and open bolt in full-auto. Development ceased due to issues with its bullpup trigger linkage.

Chapters

  1. 00:00Introduction to the Korsac EM1
  2. 01:26Historical Context and Development
  3. 02:27Technical Specifications and Features
  4. 03:09Control Comparison with FG-42
  5. 04:28Field Stripping and Internal Components
  6. 06:16Barrel and Receiver Design
  7. 07:45Mechanical Comparison: Korsac vs. FG-42
  8. 10:33Bullpup Trigger Linkage Issues
  9. 12:50Gas System and Muzzle Attachments

Frequently Asked Questions

What is the Korsac EM1 and what is its origin?

The Korsac EM1 is a rare post-WWII bullpup light machine gun, essentially a bullpup version of the German FG-42. It was designed by a Polish emigre named Korsac in Britain between 1945 and 1947, with only two prototypes ever made.

What caliber does the Korsac EM1 fire and what magazines does it use?

The Korsac EM1 is chambered in 8mm Mauser. It uses modified ZB-26 style magazines, adapted to hold 18 rounds of ammunition.

How does the Korsac EM1 operate in terms of firing modes?

Similar to the FG-42, the Korsac EM1 fires from a closed bolt in semi-automatic mode for better accuracy and from an open bolt in full-automatic mode to aid cooling during sustained fire.

What were the main challenges in converting the FG-42 action to a bullpup design for the Korsac EM1?

Adapting the FG-42 action to a bullpup configuration required a complex sliding block trigger linkage. This system faced reliability issues in semi-automatic mode due to insufficient spring pressure during its short forward travel.

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