LMG-25: The Swiss Toggle-Locked Light Machine Gun

Published on December 29, 2025
Duration: 16:07

The LMG-25, Switzerland's first modern light machine gun, features a unique toggle-locking system developed by Adolf Furrer. Chambered in 7.5x55mm Swiss, it offers select-fire capability and a 30-round magazine compatible with the Stgw 57. A notable feature is the Advanced Primer Ignition (API) system, which reduces felt recoil and rate of fire by igniting the primer while parts are still moving forward.

Quick Summary

The LMG-25, adopted in 1925, was Switzerland's first modern light machine gun, developed by Adolf Furrer using a toggle-lock system. Chambered in 7.5x55mm Swiss, it features a 30-round magazine and an Advanced Primer Ignition (API) system for reduced recoil.

Chapters

  1. 00:00Introduction to the LMG-25
  2. 02:04External Features and Controls
  3. 03:44Accessories and Grips
  4. 04:27Advanced Primer Ignition (API) System
  5. 06:01Field Stripping and Internal Mechanics
  6. 11:09Tripod Operation
  7. 12:51Additional Kit and AA Configuration
  8. 15:14Production History and Variants

Frequently Asked Questions

What is the LMG-25 and who developed it?

The LMG-25 is Switzerland's first modern light machine gun, adopted in 1925. It was developed by Adolf Furrer, director of Waffenfabrik Bern, who was a proponent of the toggle-locking system.

What caliber does the LMG-25 use?

The LMG-25 is chambered in the standard Swiss GP11 cartridge, which is 7.5x55mm Swiss. It is a magazine-fed weapon, typically using a 30-round magazine.

What is the unique feature of the LMG-25's operating system?

The LMG-25 features a toggle-lock mechanism, similar to the Luger pistol. It also incorporates an Advanced Primer Ignition (API) system that reduces felt recoil and rate of fire.

What accessories are notable for the LMG-25?

Notable accessories include a versatile monopod that can act as a vertical grip, a precise tripod with elevation controls, and anti-aircraft sights. It also had specialized carrying cases and magazine pouches.

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