Installing a Sig Trigger: Perfecting the P227

Published on July 26, 2013
Duration: 16:13

This guide details the process of installing a new trigger on a Sig Sauer P227, as demonstrated by Terry G from Impact Guns. It covers field stripping, component removal including the trigger bar spring and locking block, critical attention to trigger pivot pin orientation, and reassembly. The video emphasizes the use of specialized tools and careful manipulation of springs for successful installation, concluding with a function check and trigger pull weight measurement.

Quick Summary

Installing a new trigger on a Sig Sauer P227 involves careful disassembly, including removing the grip panels, takedown lever, locking block, and trigger bar spring. Precise attention must be paid to the trigger pivot pin's orientation for correct locking block reinstallation. After cleaning and lubricating the new trigger, it's reinstalled, followed by reassembly, a function check, and measurement of the new trigger pull weight, which was approximately 4 lbs in this demonstration.

Chapters

  1. 00:00Introduction and Hand Size Comparison
  2. 00:41Disassembly and Grip Removal
  3. 01:23Locking Block and Takedown Lever
  4. 02:38Trigger Bar Spring and Slide Lock
  5. 04:05Trigger Pivot Pin Orientation
  6. 06:30Trigger and Trigger Bar Removal
  7. 07:35Reassembly: New Trigger Installation
  8. 09:38Locking Block Reinstallation
  9. 12:50Function Check and Pull Weight
  10. 14:23EDC Check

Frequently Asked Questions

What are the key steps for installing a new trigger on a Sig Sauer P227?

The process involves field stripping the P227, removing grip panels, takedown lever, locking block, trigger bar spring, and slide lock. Critical steps include noting the trigger pivot pin orientation and carefully reassembling the locking block with spring tension. Finally, a function check and trigger pull measurement are performed.

What tools are needed for Sig Sauer P227 trigger installation?

Essential tools include a wedge for safe grip panel removal and a trigger pull scale, such as the RCBS analog scale shown, to measure the new trigger's weight after installation. Basic gunsmithing tools for disassembly and reassembly are also implied.

What is the importance of trigger pivot pin orientation during P227 trigger installation?

Correctly aligning the striations or notches on the trigger pivot pin is crucial. This orientation ensures the locking block can be properly reinstalled, which is vital for the firearm's cycling and safe operation. Incorrect alignment can prevent reassembly or cause malfunctions.

How is the trigger pull weight measured after installing a new trigger on a Sig Sauer P227?

A trigger pull scale, like the RCBS analog model demonstrated, is used. The scale is attached to the trigger, and the pull weight is measured during the single-action pull. The video shows the new trigger pull measuring approximately 4 lbs.

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