InvisbleSight IS-EG NGAL, As Good as a Clone Gets?

Published on February 29, 2024
Duration: 20:48

This guide details the installation and zeroing of the InvisibleSight IS-EG NGAL, a clone of the L3 NGAL. It covers mounting, laser co-alignment checks, zeroing the visible laser, and confirming zero retention after live fire. The guide also touches on IR illuminator performance with night vision devices. Instruction emphasizes data-driven performance assessment, as demonstrated by the reviewer's objective testing methods.

Quick Summary

The InvisibleSight IS-EG NGAL clone offers impressive zero retention, maintaining aim after 300 rounds of 5.56. It features functional diffusers and glass lenses, with measured laser outputs of 16.72 mW (Vis High) and 27.85 mW (IR Aim High), though these are not eye-safe. A 5 MOA co-alignment offset exists between visible and IR lasers.

Chapters

  1. 00:00Introduction and Disclosure
  2. 01:07Weight and External Build
  3. 02:18Mechanical Features
  4. 04:29Adjustment Turrets and Tracking
  5. 06:48Laser Power Measurements
  6. 08:14Laser Co-alignment
  7. 11:03Zero Retention and Reliability
  8. 13:08Night Vision Performance

Frequently Asked Questions

How much does the InvisibleSight IS-EG NGAL weigh?

The InvisibleSight IS-EG NGAL weighs 168 grams with a CR123A battery installed. The included dual switch adds an additional 49 grams to the total system weight.

What are the measured laser outputs for the IS-EG NGAL?

The IS-EG NGAL measured 16.72 mW for Visible High, 27.85 mW for IR Aim High, and exceeded 28.4 mW for IR Illuminator High. These outputs are not considered eye-safe.

Does the IS-EG NGAL hold zero well under recoil?

Yes, the IS-EG NGAL demonstrated excellent zero retention, maintaining its zero with virtually no shift after firing 300 rounds of 5.56x45mm ammunition through a 10.5-inch barrel.

What is the co-alignment offset between the visible and IR lasers on the IS-EG NGAL?

The unit showed a 5 MOA horizontal offset between the visible and IR lasers at 12 yards. While not perfect, this offset is considered manageable for practical use within 50 yards.

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