Sig P220 10mm Legion with RMRcc & Single Stage Trigger Job

Published on January 31, 2023
Duration: 3:36

This guide details advanced modifications to a Sig P220 10mm Legion, transforming it into a custom 'bear killer.' The process includes converting to a single-stage flat trigger, milling for a Trijicon RMRcc with co-witnessed sights, custom Cerakote matching the Legion's signature green, relocating the Legion emblem, re-engineering the safety for a light trigger pull, and installing a dual recoil spring system for reduced felt recoil. The instruction comes from an expert with deep knowledge of firearm mechanics and customization.

Quick Summary

Expert gunsmithing transforms a Sig P220 10mm Legion with a single-stage flat trigger, RMRcc optic, custom Cerakote, and a dual recoil system. This advanced modification significantly reduces felt recoil, making the 10mm feel like a .45 ACP, and enhances the firearm's overall performance and handling.

Chapters

  1. 00:00Introduction: Sig P220 10mm Legion Overview
  2. 00:13Trigger Modification: Single-Stage Flat Trigger Conversion
  3. 00:30Optic Installation: RMRcc Milling and Co-Witness
  4. 00:45Customization: Cerakote and Legion Logo Relocation
  5. 01:05Cerakote Color Matching for Legion Models
  6. 01:31Trigger Pull Demonstration and Feel
  7. 02:04Safety Re-engineering for Light Triggers
  8. 02:36Recoil System Upgrade: Dual Spring Setup
  9. 03:17Conclusion: The 'Bear Killer' Custom P220

Frequently Asked Questions

What modifications were made to the Sig P220 10mm Legion in the video?

The Sig P220 10mm Legion was modified with a single-stage flat trigger, a Trijicon RMRcc red dot sight milled into the slide, custom Cerakote in a signature Legion green, relocation of the Legion emblem, re-engineered safety for a light trigger, and a dual recoil spring system for reduced recoil.

How does the dual recoil system affect shooting the Sig P220 10mm?

The dual recoil system, featuring inner and outer springs, significantly reduces perceived recoil. This upgrade makes shooting the 10mm feel more like shooting a .45 ACP and eases the effort required to rack the slide.

What is the difference between a single-stage and two-stage trigger on a Sig P220?

The factory Sig P220 comes with a two-stage single-action trigger. This modification converts it to a single-stage trigger, which has no initial take-up and an immediate break, offering a more direct feel compared to the two-stage system.

Why was the Legion emblem relocated on the Sig P220?

The Legion emblem was relocated to the front of the slide because the slide was milled to directly mount a Trijicon RMRcc red dot sight. The milling process removed the original location of the emblem.

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