Costa Rican Breda PG: The First Burst-Fire Rifle

Published on August 11, 2017
Duration: 18:26

This guide details the disassembly process for the Breda PG, an early Italian select-fire rifle. It highlights the removal of key components to access the unique annular gas piston system, which uses barrel ports rather than a traditional gas trap. The information is presented with the high authority of Ian McCollum, an expert in historical firearms.

Quick Summary

The Breda PG is a rare early Italian select-fire rifle known for its unique 4-round burst mechanism, developed by Sestilio Fiorini and manufactured between 1931-1937. The Costa Rican contract variant, chambered in 7mm Mauser, featured this burst capability, distinguishing it from the semi-auto-only Italian contract version in 6.5mm Carcano.

Chapters

  1. 00:00Introduction and History
  2. 02:36External Markings and Sights
  3. 03:50Controls and Ergonomics
  4. 05:54Disassembly and Gas System
  5. 08:29Internal Mechanics
  6. 11:194-Round Burst Mechanism
  7. 15:09Operation and Conclusion

Frequently Asked Questions

What is the Breda PG and what makes it unique?

The Breda PG is an early Italian select-fire rifle developed by Sestilio Fiorini, manufactured between 1931-1937. Its uniqueness lies in its 4-round burst fire capability, a rare feature for its time, particularly in the variant sold to Costa Rica in 7mm Mauser.

How does the Breda PG's burst fire mechanism work?

The Breda PG employs a complex dual-ratchet gear system. One wheel advances with each shot fired, while a second wheel is timed to trip the disconnector every four rounds, enabling the 4-round burst function.

What are the key differences between the Italian and Costa Rican Breda PG contracts?

The Italian contract Breda PG was semi-automatic only and chambered in 6.5mm Carcano. The Costa Rican contract featured the more advanced 4-round burst fire mode and was chambered in 7mm Mauser.

What are the main components involved in the Breda PG's gas system?

The Breda PG utilizes an annular gas piston system. Instead of a gas trap, it features four gas ports drilled into the barrel near the muzzle, which direct gas to operate the rifle's action.

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