The Swedish Suomi M-37/39 Submachine Gun

Published on September 13, 2017
Duration: 7:03

This guide details the field stripping process for the Swedish Suomi M-37/39 submachine gun, based on expert instruction from Ian McCollum. It covers the removal of the rear cap, recoil spring, and bolt. The video highlights the firearm's design, including its origins as a licensed Finnish M-31 copy with Swedish modifications.

Quick Summary

The Swedish Suomi M-37/39 is a submachine gun based on the Finnish M-31, produced by Husqvarna. It was modified for Swedish service with updated sights, charging handle, barrel length, and stock. Early versions used 9x20mm Browning Long, but the M-37/39 adopted the 9mm Parabellum cartridge.

Chapters

  1. 00:00Introduction to Swedish Suomi M-37/39
  2. 00:30Initial Caliber and Magazine Design
  3. 02:12Transition to 9mm Parabellum
  4. 03:15Technical Features and Sights
  5. 03:57Controls and Barrel Design
  6. 05:10Field Stripping and Internal Components

Frequently Asked Questions

What is the Swedish Suomi M-37/39 submachine gun?

The Swedish Suomi M-37/39 is a submachine gun that was a licensed copy of the Finnish Suomi M-31, modified by Sweden. It featured changes to its sights, charging handle, barrel length, and stock profile, and was produced by Husqvarna.

What caliber does the Swedish Suomi M-37/39 use?

Initially, some Swedish Suomi variants used the 9x20mm Browning Long cartridge. However, by 1939, the M-37/39 model adopted the more common 9mm Parabellum (9x19mm) cartridge, aligning with other European SMGs.

Who manufactured the Swedish Suomi M-37/39?

The Swedish Suomi M-37/39 submachine gun was manufactured by Husqvarna Vapenfabriks AB in Sweden. This is indicated by the 'H' marking found on components like the bolt.

What are the key differences between the Finnish M-31 and the Swedish M-37/39?

The Swedish M-37/39 is a modified version of the Finnish M-31. Key differences include updated sights (three-leaf vs. two-leaf), a modified charging handle, altered barrel length, and a different stock profile, along with caliber adaptations.

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