How To Install A Beretta 92/M9 D Spring (HD)

Published on May 4, 2013
Duration: 4:45

This guide details the installation of a Brownells D hammer spring on a Beretta 92/M9 series pistol, aimed at reducing the double-action trigger pull. The process involves careful disassembly, replacement of the hammer spring, and reassembly, with a focus on safety and proper function checks. The speaker, demonstrating experienced gunsmithing knowledge, shows how to measure the trigger pull before and after the modification.

Quick Summary

Installing a D hammer spring on a Beretta 92/M9 reduces the double-action trigger pull from over 10 lbs (often 12-13 lbs) down to 8-9 lbs. This modification requires firearm disassembly, removal of the old spring, installation of the new D spring, and careful reassembly with a function check.

Chapters

  1. 00:16Introduction: Beretta 92 Trigger Issues
  2. 00:41Measuring Factory Trigger Pull
  3. 01:13Tools and Parts for Installation
  4. 01:33Disassembling the Firearm
  5. 01:50Removing the Hammer Spring Pin
  6. 02:38Comparing Old and New Hammer Springs
  7. 02:47Installing the New Hammer Spring
  8. 03:30Reassembly and Function Check
  9. 03:41Measuring New Trigger Pull and Conclusion

Frequently Asked Questions

What is the purpose of installing a D hammer spring in a Beretta 92/M9?

Installing a D hammer spring in a Beretta 92/M9 is done to reduce the weight of the double-action trigger pull. This modification can make the trigger feel smoother and lighter, improving the shooting experience for many users.

How much does a D hammer spring reduce the trigger pull weight on a Beretta 92/M9?

A factory Beretta 92/M9 typically has a double-action trigger pull exceeding 10 lbs, often around 12-13 lbs. Installing a D hammer spring can bring this down to the 8-9 lb range, a significant and noticeable improvement.

What tools are needed to install a D hammer spring on a Beretta 92/M9?

For installing a D hammer spring on a Beretta 92/M9, you will need a hex wrench for the grips (which may vary by model), a 1/16th punch to remove the hammer spring pin, and a trigger pull gauge to measure the results.

Is installing a D hammer spring a difficult modification for a Beretta 92/M9?

Installing a D hammer spring is an intermediate-level modification. It requires careful disassembly and reassembly of the firearm, including the removal and replacement of the hammer spring pin. Safety precautions are paramount throughout the process.

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