How To Episode 4: Mosin Trigger Job

Published on May 2, 2013
Duration: 19:48

This tutorial details a basic Mosin-Nagant trigger job, reducing pull weight from 12-15 lbs to approximately 4 lbs. Key steps involve analyzing trigger mechanics, marking engagement surfaces with a Sharpie, and carefully grinding and polishing the sear and cocking piece to achieve 90-degree angles. Safety checks are crucial to ensure the trigger isn't overly light after modification.

Quick Summary

A basic Mosin Nagant trigger job can significantly improve your rifle's performance by reducing pull weight from 12-15 lbs to around 4 lbs. This involves carefully grinding and polishing the sear and cocking piece to achieve precise 90-degree engagement angles, followed by a crucial safety check.

Chapters

  1. 00:00Introduction to Mosin Trigger Jobs
  2. 01:11Analyzing Trigger Mechanics
  3. 02:58Disassembly and Component Overview
  4. 06:27Marking Engagement Surfaces
  5. 10:07Grinding and Polishing the Sear
  6. 11:17Trigger and Cocking Piece Refinement
  7. 13:07Reassembly and Initial Testing
  8. 16:11Final Assessment and Safety Check
  9. 17:23Correcting an Overly Light Trigger

Frequently Asked Questions

How can I improve my Mosin Nagant's trigger pull?

A basic Mosin Nagant trigger job involves carefully grinding and polishing the sear and cocking piece engagement surfaces to achieve 90-degree angles. This process can reduce the trigger pull weight significantly, often from 12-15 lbs down to around 4 lbs, improving the shooting experience.

What are the key components involved in a Mosin Nagant trigger job?

The primary components are the leaf spring sear and the cocking piece (striker). The trigger job focuses on modifying the engagement surfaces of these parts to ensure a clean break and reduced pull weight, aiming for precise 90-degree angles.

How do I ensure a Mosin Nagant trigger job is safe?

After modifying the trigger, perform a safety test by firmly banging the rifle's buttstock on the floor. If the rifle does not dry-fire accidentally, the trigger is considered safe. If it's too light, file down the sear stop to increase engagement.

What tools are needed for a Mosin Nagant trigger job?

Essential tools include a Sharpie permanent marker for marking surfaces, and a belt sander or files for grinding and polishing. Precision is key, especially when working on the sear and cocking piece engagement angles.

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