ECM Precision | Norsso 3.7 Geo Ports!

Published on August 10, 2025
Duration: 20:58

This video details the assembly and performance testing of a custom Sig P365 XL build featuring an ECM Precision R11 grip module and a Norso 3.7-inch slide and bull barrel with Geo Ports. The build demonstrates tight tolerances, good accuracy at 25 yards (sub-2-inch groups), and reliable performance after a brief break-in period. The presenters discuss the ergonomics, aesthetics, and practical application of this highly customized micro-compact pistol for concealed carry.

Quick Summary

This custom Sig P365 XL build features an ECM Precision R11 grip module and a Norso 3.7-inch slide with Geo Ports, achieving sub-2-inch groups at 25 yards. The Geo Ports effectively reduce muzzle rise, enhancing accuracy and speed for follow-up shots.

Frequently Asked Questions

What are the key components of this custom Sig P365 XL build?

This build features an ECM Precision R11 XL length grip module, a Norso 3.7-inch slide and bull barrel combo with Geo Ports, a Holosun 507K optic, and a Surefire XC3 weapon light. The combination aims for enhanced ergonomics, accuracy, and recoil control.

How accurate is the Norso 3.7-inch Geo Port barrel and slide on a P365 XL?

The Norso 3.7-inch Geo Port setup demonstrated excellent accuracy, achieving sub-2-inch groups at 25 yards during testing. This level of precision is notable for a micro-compact pistol build.

What are the benefits of the Norso Geo Ports on this P365 XL build?

The Geo Ports on the Norso barrel and slide are designed to significantly reduce muzzle rise. This allows for faster sight reacquisition and better tracking of the red dot, making follow-up shots quicker and more accurate.

How does the ECM Precision R11 grip module affect the P365 XL's ergonomics?

The ECM R11 grip module is larger and more substantial than the stock P365 XL grip, offering improved ergonomics for shooters with larger hands. It provides a solid feel and contributes to better control of the firearm.

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