Between SMG and PDW: Sweden's CBJ-MS

Published on December 20, 2025
Duration: 1:04

The CBJ-MS is a modernized 9mm submachine gun based on the Swedish K, designed as a compact PDW-style platform. It features a unique progressive trigger for semi and full-auto fire without a selector, a grip safety, and a vertical foregrip that stores a spare magazine. The muzzle is compatible with standard M16 bipods for added stability.

Quick Summary

The CBJ-MS is a modernized 9mm submachine gun based on the Swedish K, designed as a compact PDW. It features a unique progressive trigger for semi/full-auto fire, a grip safety, and a vertical foregrip that stores a spare magazine. Its muzzle is compatible with standard M16 bipods.

Chapters

  1. 00:00Introduction to the CBJ-MS
  2. 00:20Muzzle and Bipod Compatibility
  3. 00:33Front Grip and Magazine Storage
  4. 00:40Safety and Charging Handle
  5. 00:52Progressive Trigger System

Frequently Asked Questions

What makes the CBJ-MS trigger system unique?

The CBJ-MS features a progressive trigger. A short pull allows for semi-automatic fire, while pulling the trigger fully engages the mechanism for fully automatic fire, eliminating the need for a separate fire selector switch.

How does the CBJ-MS enhance its compact design for utility?

The CBJ-MS incorporates a vertical front grip that cleverly serves a dual purpose: it provides a stable shooting grip and also includes internal storage for a spare 9mm magazine.

Can the CBJ-MS be fitted with a bipod?

Yes, the CBJ-MS is designed with a specific sleeve on its muzzle that allows for the attachment of a standard M16 'clothespin' style bipod, adding stability during firing.

What is the primary safety mechanism on the CBJ-MS?

The main mechanical safety feature on the CBJ-MS is a grip safety located on the front of the pistol grip. This requires the shooter to depress it for the firearm to operate.

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