Prototype MAS 1925M Pistol: Cartridge Counting in 7.65 French Long

Published on June 3, 2026
Duration: 11:32

This video provides an in-depth look at the prototype MAS Model 1925M pistol, chambered in 7.65 French Long. It details the pistol's development context within French post-WWI military small arms rearmament programs, highlighting its design evolution based on trial feedback. Key features discussed include its simple blowback operation, a unique magazine with a built-in round counter, and its field stripping procedure.

Quick Summary

The prototype MAS Model 1925M pistol, chambered in 7.65 French Long, was developed as part of a French military effort to modernize small arms post-WWI. It features a unique 10-round magazine with a built-in round counter and design improvements like a fixed barrel and interrupted thread bolt connection.

Chapters

  1. 00:00Introduction & IRCGN Visit
  2. 00:21Post-WWI French Rearmament Program
  3. 00:271921 Program Goals
  4. 00:71MAS Prototype Development
  5. 01:11MAS 1925M Design & Caliber
  6. 01:521925 Trials & Feedback
  7. 02:06MAS 1925M Features & Markings
  8. 02:23Improved Version (M)
  9. 02:437.65L Caliber Marking
  10. 02:58Magazine with Round Counter
  11. 03:25Safety Mechanism
  12. 03:56Disassembly Procedure
  13. 04:15Fixed Barrel Design
  14. 04:35Round Counter Mechanism Explained
  15. 04:50Magazine Capacity Evolution
  16. 05:06Lockwork & Mainspring
  17. 05:20Breech Block Components
  18. 05:42Field Strip Complete
  19. 05:50Modern System, Archaic Appearance
  20. 05:56Interwar French Arms Development Challenges
  21. 06:00Later Trials (1933 & 1935)
  22. 06:66Evolution to Model 1935S
  23. 06:78Conclusion & Thanks

Frequently Asked Questions

What was the purpose of the 1921 French military program?

The 1921 French military program aimed to replace all obsolete small arms used during World War I, including rifles, pistols, and light machine guns, with standardized, modern designs.

What are the key features of the MAS Model 1925M pistol?

The MAS Model 1925M is a simple blowback pistol in 7.65 French Long, featuring a unique 10-round magazine with a built-in round counter, a fixed barrel, and an interrupted thread connection for the bolt face.

How does the round counter on the MAS 1925M magazine work?

The magazine has an indicator bar on the inside that is pushed by a follower button on the side. As rounds are loaded, the button is pushed up, causing the indicator bar to retract and display a lower round count on the frame.

What design changes were made to the MAS 1925M from the original 1925 trials?

The MAS 1925M incorporated requested improvements such as attaching the frame to the barrel and using an interrupted thread connection between the bolt face and slide assembly to enhance durability over the original pinned breech block.

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