FNAB 43: From WW2 Italy to Algerian Independence

Published on November 2, 2025
Duration: 1:03

This guide provides an expert overview of the FNAB-43 submachine gun, drawing on Ian McCollum's detailed analysis. It covers the firearm's unique folding magazine well, its closed-bolt operation with distinct selector levers, and the intricacies of its delayed blowback system. The information is presented with a high degree of authority, suitable for intermediate-level enthusiasts interested in historical firearm mechanics.

Quick Summary

The FNAB-43 is a unique late World War II Italian submachine gun featuring a compact design with a folding magazine well and a complex delayed blowback operating system. It offers select-fire capability with distinct 'Safe'/'Fire' and 'Semi-Auto'/'Full-Auto' selectors, explained in detail by firearms expert Ian McCollum.

Chapters

  1. 00:00Introduction to the FNAB-43
  2. 00:09Compact Design and Folding Magazine
  3. 00:22Bolt Operation and Selectors
  4. 00:35Firing Mechanism
  5. 00:46Delayed Blowback Action

Frequently Asked Questions

What is the FNAB-43 and what makes its design unique?

The FNAB-43 is a late World War II Italian submachine gun recognized for its distinctive features, including a compact design with a folding magazine well that latches to the barrel, and a delayed blowback operating system.

How does the FNAB-43's delayed blowback system work?

The FNAB-43 employs a delayed blowback system where recoil pushes the bolt rearward. Levers at the bottom of the bolt assembly catch on the receiver, retarding the bolt's opening speed before the front end can move, allowing for controlled firing.

What are the fire control features of the FNAB-43?

The FNAB-43 is a select-fire weapon featuring two separate selector levers on the receiver: one for switching between 'Safe' and 'Fire', and another for selecting between 'Semi-Auto' and 'Full-Auto' modes.

Who is Ian McCollum and why is his assessment of the FNAB-43 significant?

Ian McCollum, host of Forgotten Weapons, is a recognized expert in historical firearms. His detailed mechanical analysis and historical context provide high authority and expertise regarding the FNAB-43's design and operation.

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