PKM Machine Gun: a belt fed beast

Published on October 5, 2019
Duration: 5:31

The PKM is highlighted as a top-tier medium machine gun, praised for its lightweight design and robust Soviet construction. Its 7.62x54R caliber and unique two-stage feeding mechanism, stemming from its non-disintegrating belt, are detailed. The review covers field stripping, internal Kalashnikov-based design, loading procedures, and a live-fire demonstration showcasing controllable automatic fire.

Quick Summary

The PKM machine gun is chambered in 7.62x54R and features a unique two-stage feeding mechanism due to the rimmed cartridge. It is built with typical Soviet construction, including a stamped receiver and laminated stock, and shares internal design elements with the Kalashnikov system.

Chapters

  1. 00:00Introduction to the PKM
  2. 00:26Caliber and Feeding Mechanism
  3. 01:02Construction and History
  4. 01:31Field Stripping and Disassembly
  5. 02:12Internal Design
  6. 03:34Loading and Operation
  7. 04:11Live Fire Demonstration
  8. 04:52Unloading Procedure

Frequently Asked Questions

What caliber does the PKM machine gun use?

The PKM machine gun is chambered in the 7.62x54R caliber. This is a 19th-century rimmed cartridge, which influences the gun's unique two-stage feeding mechanism.

How does the PKM's feeding mechanism differ from Western designs?

Due to its rimmed 7.62x54R cartridge, the PKM uses a two-stage feeding mechanism. It pulls the cartridge backward out of the belt before pushing it into the receiver, unlike Western disintegrating link systems.

What are the key construction features of the PKM?

The PKM features typical Soviet construction: a stamped sheet metal receiver, a laminated birch stock, and a hammer-forged, chrome-lined barrel. Its non-disintegrating belt design is an older feature.

Is the PKM based on the AK-47 design?

Yes, the internal design of the PKM is based on the Kalashnikov system. It utilizes a long-stroke gas piston and a rotating bolt, with specialized feed horns for belt feeding.

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