The Colt MARS and Centurion Resurrection of a Prodigy

Published on February 2, 2026
Duration: 36:35

This video delves into the history and revival of the Colt MARS (Mini Assault Rifle System) by Centurion Arms. It highlights the MARS's innovative design, aiming for rifle-class power in a submachine gun form factor, and its superior ballistic performance compared to modern PDW rounds. The review emphasizes the technical challenges overcome in its resurrection and its potential relevance for special operations.

Quick Summary

The Colt MARS (Mini Assault Rifle System) aimed for rifle-class power in a submachine gun form factor. Its 5.56x30mm cartridge outperforms modern PDW rounds, and Centurion Arms is now producing limited-run clones using advanced manufacturing to replicate the original design.

Chapters

  1. 00:00Introduction: Centurion Arms & Colt MARS Revival
  2. 00:54History: The MARS Program's Origins (1995-1997)
  3. 03:08Technical Design: Modifying the M4 Platform
  4. 05:00The 5.56x30mm MARS Cartridge Explained
  5. 07:53Ballistic Comparisons: MARS vs. Modern PDW Rounds
  6. 09:41Colt's Project Cancellation & Vaulting
  7. 13:00Centurion Arms: Manufacturing the MARS Clones
  8. 16:30Internal Mechanics & Experimental Variants
  9. 19:15Live Fire Demo & Conclusion: MARS Relevance

Frequently Asked Questions

What was the original goal of the Colt MARS program?

The Colt MARS (Mini Assault Rifle System) program, initiated around 1995-1997 by SOCOM veteran Michael Harris, aimed to create a Personal Defense Weapon (PDW) that offered rifle-class power in a package the size and weight of a submachine gun, capable of winning a gunfight against an AK-47.

How did Centurion Arms resurrect the Colt MARS?

Centurion Arms reverse-engineered the original Colt MARS prototypes using historical photos and data. They are now producing a limited run of 100 clones, employing modern techniques like wire EDM and laser welding to join modified M4 receivers, replicating the original design.

What makes the 5.56x30mm MARS cartridge unique?

The 5.56x30mm MARS cartridge is essentially a shortened 5.56 NATO round, loaded with a magnum pistol propellant for a slower burn. It drives a 55-grain projectile at approximately 2,600 FPS from a 10.5-inch barrel, offering superior ballistics to other PDW rounds.

Why was the Colt MARS project originally canceled?

Despite successful testing, Colt's marketing department canceled the MARS project. They feared it would compete with sales of their M4 carbines and their recently invested 9mm submachine gun program, leading the project to be shelved for over two decades.

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