AK fm/54: Prototype Swedish Paratrooper Rifle

Published on July 9, 2025
Duration: 1:04

This guide details the modifications and key features of the AK fm/54 prototype Swedish paratrooper rifle. It highlights the use of a Carl Gustaf m/45 folding stock, a unique 20-round 7.62 NATO magazine, and a conversion to a short-stroke gas piston system. The video provides an educational and analytical overview from Ian McCollum, demonstrating high expertise in historical firearms.

Quick Summary

The AK fm/54 prototype is a Swedish paratrooper rifle from the mid-1950s. Modifications for the paratrooper version included replacing the stock with a folding unit from a Carl Gustaf m/45 submachine gun. It fires 7.62 NATO from a 20-round magazine and uses a short-stroke gas piston system.

Chapters

  1. 00:00Introduction of AK fm/54
  2. 00:06Paratrooper Stock Modification
  3. 00:20Magazine and Caliber Details
  4. 00:25Ljungman Fire Control Group
  5. 00:38Gas System Changes
  6. 00:54Historical Outcome

Frequently Asked Questions

What modifications were made to create the paratrooper version of the AK fm/54?

To create the paratrooper carbine, the original stock of the AK fm/54 prototype was cut and replaced with a folding stock taken from the Carl Gustaf m/45 submachine gun, making it more compact for airborne operations.

What caliber and magazine capacity does the AK fm/54 prototype use?

The AK fm/54 prototype rifle is chambered in 7.62 NATO and utilizes a unique 20-round Swedish-made magazine designed specifically for this rifle and caliber.

What type of gas system does the AK fm/54 prototype employ?

The AK fm/54 prototype features a modified gas system. It was changed from a direct impingement system to a more robust short-stroke gas piston system, which is often favored for reliability.

Why was the AK fm/54 prototype ultimately not adopted by the Swedish military?

The Swedish military ultimately rejected the AK fm/54 prototype in favor of adopting the G3 rifle, which was designated as the AK4, in 1964. This decision was part of a broader military procurement process.

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