Italy's WW1 Heavy Machine Gun: FIAT-Revelli Modello 1914

Published on December 9, 2020
Duration: 17:59

This guide details the field stripping and reassembly of the FIAT-Revelli Modello 1914 heavy machine gun, as demonstrated by Ian McCollum on Forgotten Weapons. It covers the removal of the bolt and barrel assembly, disassembly of the bolt carrier, and the critical function of the delayed blowback mechanism. Proper maintenance and understanding of its unique features are essential for this complex firearm.

Quick Summary

The FIAT-Revelli Modello 1914, Italy's standard WWI heavy machine gun, features a unique delayed blowback action and a distinctive 50-round 'mousetrap' magazine. Its water-cooling system includes a recirculating pump, a rare feature for its time. Adopted in 1914, it replaced less successful domestic designs like the Perino.

Chapters

  1. 00:00Intro & Italian Machine Gun History
  2. 01:11The Perino Machine Gun
  3. 02:06Bethel Revelli & FIAT
  4. 02:58Unique Cooling System
  5. 04:17The 'Mousetrap' Magazine
  6. 06:27External Controls & Sights
  7. 07:32Internal Operation & Fire Selector
  8. 09:05Disassembly & Safety Mechanisms
  9. 11:41Bolt & Barrel Removal
  10. 15:57Service History & Evolution

Frequently Asked Questions

What makes the FIAT-Revelli Modello 1914's cooling system unique?

The FIAT-Revelli Modello 1914 features a distinctive water-cooling system that uses a hand-cranked pump on the condensing can to recirculate liquid water back into the jacket, unlike systems that simply vent steam.

How does the FIAT-Revelli Modello 1914's magazine system work?

It employs a unique 50-round 'mousetrap' magazine block, which consists of ten columns, each holding five rounds. The magazine indexes across the gun as each column is emptied during firing.

What is the operating principle of the FIAT-Revelli Modello 1914?

The FIAT-Revelli Modello 1914 operates on a delayed blowback principle. This is achieved through a complex system involving a locking wedge that slows the bolt's rearward movement, allowing the barrel to recoil slightly before unlocking.

What were the historical circumstances leading to the adoption of the FIAT-Revelli Modello 1914?

Italy adopted the FIAT-Revelli Modello 1914 in 1914 as its standard heavy machine gun due to the unavailability of foreign arms. This design by Captain Bethel Revelli was manufactured by FIAT (Fabbrica Italiana Automobili Torino).

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