The CIA's shady suppressed Vietnam-era sub machine gun: The Carl Gustav M/45 with Jonathan Ferguson

Published on September 25, 2024
Duration: 17:00

This guide details the disassembly and functional aspects of the suppressed Carl Gustav M/45, often referred to as the 'Swedish K'. Expert Jonathan Ferguson of the Royal Armouries explains the unique integral suppressor design, including barrel porting and wire mesh baffling, which reduces 9x19mm Parabellum rounds to subsonic velocities. The process involves careful field stripping and examination of internal components, highlighting modifications made for clandestine operations during the Vietnam era.

Quick Summary

The suppressed Carl Gustav M/45, nicknamed the 'Swedish K', was used by CIA-linked special units in Vietnam. Its integral suppressor features wire mesh baffling and barrel porting to reduce 9x19mm rounds to subsonic speeds. Markings were often removed for deniable operations, and the suppressed variant has a shorter barrel and modified recoil spring compared to the standard model.

Chapters

  1. 00:00Introduction to the Carl Gustav M/45
  2. 01:16The CIA and Vietnam Connection
  3. 03:15Standard M/45 Specs and Features
  4. 06:06Disassembly and Sanitized Markings
  5. 09:10Suppressor Design and Barrel Porting
  6. 11:41Barrel Comparison and Origin Speculation

Frequently Asked Questions

What is the 'Swedish K' and its significance?

The 'Swedish K' is the nickname for the Carl Gustav M/45 submachine gun, famously associated with the CIA and special units like MACV-SOG and Navy SEALs during the Vietnam War for deniable operations.

How does the suppressed Carl Gustav M/45 reduce noise?

The suppressed M/45 features an integral suppressor with wire mesh baffling and four large ports near the chamber. These ports bleed gas into the suppressor, slowing it down and reducing the 9x19mm rounds' velocity to subsonic levels.

Why were markings ground off the suppressed M/45?

Markings such as serial numbers and inspection stamps were ground off the receiver and bolt of the suppressed M/45. This 'sanitization' was a common practice for weapons intended for clandestine use, obscuring their origin and making them deniable.

What are the key differences between the standard and suppressed M/45?

The suppressed M/45 has a significantly shorter barrel (about two-thirds the length) and a different recoil spring. Its integral suppressor is a key feature, unlike the standard M/45 which uses a longer barrel and can accept larger magazines like the Suomi 'coffin' type.

More Gunsmithing & DIY Videos You Might Like

More from Royal Armouries

View all →