Gear-Ratio-Accelerated? Yep, It's a Thing: French MAT 1955 Prototype

Published on December 20, 2023
Duration: 14:20

The French MAT 1955 prototype rifle featured a unique gear-ratio-accelerated short recoil system, intended to delay bolt opening. Despite innovative design elements like a spigot grenade launcher and dial aperture sight, it proved fragile and inaccurate in trials. Ultimately, the MAS 49/56 was adopted instead, highlighting the MAT 1955's developmental shortcomings.

Quick Summary

The French MAT 1955 prototype rifle utilized a unique gear-ratio-accelerated short recoil system. This complex mechanism employed gears to delay bolt opening, aiming to manage recoil and pressure. Despite innovative features like a grenade launcher, it was ultimately rejected for being fragile and inaccurate.

Chapters

  1. 00:00Introduction to the MAT 1955 Prototype
  2. 01:17External Features and Controls
  3. 02:01Grenade Launching System Explained
  4. 03:19Unique Dial Aperture Sighting System
  5. 03:54Open Bolt Operation and Magazine
  6. 05:02Disassembly Reveals Internal Gears
  7. 07:16How the Gear-Ratio Mechanism Works
  8. 10:48Select-Fire Mechanism and Sear
  9. 12:05Historical Context and Trial Results

Frequently Asked Questions

What was the unique operating system of the French MAT 1955 prototype rifle?

The MAT 1955 featured a novel gear-ratio-accelerated short recoil system. This mechanism used internal gears to mechanically delay the bolt opening after firing, intended to manage recoil and pressure safely.

What were the key features of the MAT 1955 prototype rifle?

Key features included a gear-ratio-accelerated short recoil action, a spigot grenade launcher with adjustable range, a dial aperture rear sight (200-600m), and select-fire capability firing from an open bolt.

Why was the MAT 1955 prototype rifle ultimately rejected?

During trials, the MAT 1955 proved to be fragile and lacked the necessary accuracy for a service rifle. These performance issues led to its rejection in favor of the more reliable MAS 49/56.

What inspired the gear system in the MAT 1955?

The complex gear system in the MAT 1955 is believed to have been inspired by the mechanical delay mechanisms found in earlier firearms, specifically the St. Etienne Model 1907 heavy machine gun.

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