Johnson LMG: History & Disassembly

Published on February 29, 2016
Duration: 21:42

The Johnson M1941 LMG, developed by Melvin Johnson, was a unique WWII firearm featuring a short recoil operating system and a quick-change barrel. Despite its advanced design and reliability, it saw limited production and service, primarily with US Marine Paramarines and the FSSF. Its innovative features, like a 25-round capacity and flexible fire modes, made it a capable weapon in the Pacific and Italian campaigns.

Quick Summary

The Johnson M1941 LMG uses a short recoil operating system and a 20-round side-mounted magazine, which can be topped off with stripper clips for a 25-round capacity. It saw service with US Marine Paramarines and the FSSF during WWII.

Chapters

  1. 00:00Introduction: Johnson M1941 LMG History
  2. 03:15Johnson LMG Military Service: Marines & FSSF
  3. 05:13Mechanical Operation: Short Recoil System
  4. 06:38Technical Specs: Capacity & Features
  5. 09:11Controls, Sights & Markings
  6. 11:12Johnson LMG Field Disassembly Guide

Frequently Asked Questions

What operating system does the Johnson M1941 LMG use?

The Johnson M1941 LMG utilizes a short recoil operating system. This design choice by Melvin Johnson aimed to prevent fouling common in gas-operated systems and reduce the number of moving parts for greater reliability.

What was the capacity of the Johnson M1941 LMG's magazine?

The Johnson M1941 LMG features a 20-round, side-mounted magazine. Uniquely, it could also be topped off with 5-round stripper clips through the magazine well, allowing for a total capacity of 25 rounds.

Which US military units used the Johnson M1941 LMG?

The Johnson M1941 LMG saw limited service primarily with elite units. The US Marine Corps Paramarines and the First Special Service Force (FSSF) acquired and used the weapon in the Pacific and Italian theaters.

How is the Johnson M1941 LMG disassembled?

Disassembly involves locking the bolt back, depressing a pin to remove the barrel, and then separating the upper and lower receivers via a captive button. The bolt is a two-piece design, and internal safeties prevent firing unless the bolt is fully locked.

More Reviews Videos You Might Like

More from Forgotten Weapons

View all →