Two Variants of the French RSC 1917 Semiauto WW1 Rifle

Published on April 2, 2017
Duration: 12:15

This guide details the disassembly process for the French RSC 1917 semi-automatic rifle, highlighting the differences between early and later versions. It also explains the operation of both the manual and automatic bolt hold open mechanisms. The information is presented by Ian McCollum of Forgotten Weapons, an expert in historical firearms.

Quick Summary

The French RSC 1917 rifle, the only widely issued semi-automatic combat rifle of WWI, has two main variants. Key differences include an early manual bolt hold open versus a later automatic system, and simplified disassembly in later models where the bolt handle disconnects the bolt directly. Both variants examined featured front sights drilled for luminous night sights.

Chapters

  1. 00:00Introduction: RSC 1917 Variations
  2. 01:40Receiver Markings and Serial Numbers
  3. 02:30Bolt Hold Open and Bolt Handle Differences
  4. 03:19Early Bolt Hold Open System
  5. 03:51Later Automatic Bolt Hold Open System
  6. 04:55Disassembly Differences (Early Version)
  7. 08:12Disassembly Differences (Later Version)
  8. 08:57Identifying Original vs. Updated Features
  9. 11:22Luminous Night Sights

Frequently Asked Questions

What are the main differences between early and later French RSC 1917 rifles?

The primary differences are the bolt hold open mechanism and the bolt handle. Early versions have a manual bolt hold open, while later versions feature an automatic one. Disassembly is also simplified in later models, where the bolt handle can be pulled away to disconnect the bolt assembly.

How is the RSC 1917 rifle disassembled?

Disassembly varies: early models require unscrewing the bolt handle and prying off the dust cover to access the operating rod before removing the bolt. Later models simplify this by allowing the bolt handle to be pulled away, disconnecting the bolt for easier removal.

What is significant about the RSC 1917 rifle?

The RSC 1917 is historically significant as it was the only widely issued semi-automatic combat rifle during World War I, representing a major advancement in infantry armament at the time.

Did the RSC 1917 have night sights?

Yes, both variants examined featured front sights drilled to accept luminous radioactive night sights. This was a WWI innovation also seen on other French rifles like the Berthier and Lebel, though not all RSC 1917s were equipped with this feature.

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