Gevarm D4: An Economical MAT-49 Alternative

Published on October 23, 2023
Duration: 11:31

This guide details the field stripping and reassembly process for the Gevarm D4 submachine gun, presented by Ian McCollum. It covers the removal of the stock, barrel shroud, barrel, bolt, and fire control group, emphasizing the mechanical simplicity of this blowback-operated firearm. Proper safety protocols are paramount during disassembly.

Quick Summary

The Gevarm D4 is a 9mm Parabellum submachine gun designed as a more economical alternative to the French MAT-49. It operates via an open-bolt, blowback system and features a 32-round magazine, flip rear sights, and a simple fire control group secured by a single screw, making it relatively easy to field strip.

Chapters

  1. 00:00Introduction to Gevarm D4
  2. 01:40D3 vs. D4 Models
  3. 02:05External Features and Magazine
  4. 03:34Sights and Sling Attachments
  5. 04:32Disassembly Process
  6. 06:00Internal Components
  7. 08:01Serial Numbers and Corrections
  8. 09:56Testing and Adoption

Frequently Asked Questions

What is the Gevarm D4 and how does it compare to the MAT-49?

The Gevarm D4 is a 9mm Parabellum submachine gun developed in France as a more economical alternative to the MAT-49. It features an open-bolt, blowback-operated design and was adopted by some French security agencies.

What are the key external features of the Gevarm D4?

The Gevarm D4 has a 9.5-inch barrel, a 32-round proprietary magazine, a three-position selector switch (R, CC, S), flip rear sights (50/100m), and a fixed front sight. It also has distinctively French-style sling attachments.

How is the Gevarm D4 field stripped?

Field stripping involves removing the stock, unscrewing the barrel shroud, removing the barrel and locking piece/ejector, and then disassembling the bolt and fire control group. The fire control group is held by a single screw.

What was the Gevarm D4's performance and adoption history?

During military testing in 1957, the D4 was accurate but had a 1% malfunction rate. While the Army declined it, 3,000-4,000 units were sold to Paris Police, CRS, and Middle Eastern countries.

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