The Beretta PM-12S Submachine Gun

Published on April 22, 2017
Duration: 8:13

This guide details the field stripping process for the Beretta PM-12S submachine gun, as demonstrated by Ian McCollum on Forgotten Weapons. It covers the removal of the receiver caps, mainspring, and bolt/barrel assembly. The video emphasizes the importance of safety during disassembly and highlights the PM-12S's unique telescoping bolt design for improved compactness and control.

Quick Summary

The Beretta PM-12S is a 9x19mm submachine gun featuring a unique telescoping bolt design that allows for a shorter receiver and improved muzzle control during automatic fire. Its cyclic rate is 550 rounds per minute, and it weighs approximately 6.5 lbs. Field stripping involves removing receiver caps and the bolt/barrel assembly after ensuring the firearm is unloaded.

Chapters

  1. 00:00Introduction and Italian Service
  2. 00:40Basic Specifications and Design History
  3. 01:40Nomenclature and Evolution
  4. 02:30The Telescoping Bolt
  5. 03:15Safety Features
  6. 04:11Ergonomics and Stock
  7. 04:51Field Stripping and Disassembly
  8. 05:57Mechanical Advantages of the Bolt

Frequently Asked Questions

What are the key technical specifications of the Beretta PM-12S?

The Beretta PM-12S is a 9x19mm Parabellum submachine gun weighing approximately 6.5 lbs (3 kg) with a cyclic rate of 550 rounds per minute. It features a blowback action with a telescoping bolt and a double-feed box magazine.

How does the telescoping bolt of the Beretta PM-12S improve its design?

The telescoping bolt wraps around the barrel, allowing for a significantly shorter overall receiver length. This design also helps keep the center of gravity forward, which reduces muzzle climb during automatic fire, making the weapon more controllable.

What is the field stripping procedure for the Beretta PM-12S?

Field stripping involves unscrewing the rear receiver cap, removing the mainspring and guide rod, unscrewing the front receiver cap, and then depressing the grip safety and trigger to slide out the bolt and barrel assembly.

Who is Ian McCollum and what is his expertise regarding firearms?

Ian McCollum is the host of Forgotten Weapons, a channel recognized for its deep knowledge of historical and rare firearms. His expertise is evident in his detailed technical explanations and ability to perform complex procedures like field stripping on camera.

More Gunsmithing & DIY Videos You Might Like

More from Forgotten Weapons

View all →