Subscriber Submitted AR-15 Muzzle Brake

Published on March 18, 2018
Duration: 5:45

This video reviews a subscriber-submitted AR-15 muzzle brake designed by a machinist named Josh Wiley. The brake features a closed bottom, ported sides, and an open top. Testing focuses on its performance in kicking up debris from the ground and its flash signature in low-light conditions. The presenter notes minimal ground disturbance and a significant, but manageable, flash signature.

Quick Summary

This AR-15 muzzle brake, designed by machinist Josh Wiley, features a closed bottom for minimal ground debris kick-up and an open top that produces a significant flash signature. Testing confirmed good ground performance, but the open top resulted in a large purple flash in low light, potentially impacting sight acquisition.

Chapters

  1. 00:00Introduction & Subscriber Submission
  2. 00:36Muzzle Brake Design Overview
  3. 01:10Ground Performance Test Setup
  4. 01:29Ground Performance Firing
  5. 01:50Low Position Ground Test
  6. 03:47Low Light Flash Test Setup
  7. 04:25Low Light Flash Test Firing
  8. 04:59Conclusion & Josh Wiley's Channel

Frequently Asked Questions

How does the closed bottom design of this AR-15 muzzle brake affect ground performance?

The closed bottom design is intended to minimize the displacement of ground debris like dust and gravel when firing. Testing showed that it performed well in this regard, with minimal kick-up even when shot from very low positions.

What is the flash signature like for this open-top muzzle brake?

The open-top design of this muzzle brake produces a significant flash signature, particularly noticeable in low-light conditions. The presenter observed a large purple flash that could temporarily affect target reacquisition.

Where can I see how this custom AR-15 muzzle brake was made?

The video mentions that the machinist, Josh Wiley, has a separate video on his channel detailing the entire machining process for this muzzle brake. A link to his channel is provided in the video description.

What type of ammunition was used to test this AR-15 muzzle brake?

The muzzle brake was tested using Fiocchi 223 A ammunition. This specific ammunition was used for both the ground performance and low-light flash signature evaluations.

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