How To Replace An AR-15 Rifle Muzzle Device (Brake, Comp, Flash Hider) HD

Published on January 22, 2013
Duration: 3:13

This guide details the expert process for replacing an AR-15 muzzle device, including flash hiders, brakes, and compensators. It emphasizes proper tool usage, crush washer orientation, and a specific torque technique to ensure correct installation and prevent binding. The instruction comes from Mrgunsngear Channel, demonstrating an expert's approach to firearm modification.

Quick Summary

Replacing an AR-15 muzzle device requires an AR armorer's wrench and a vise. Secure the upper receiver, remove the old device noting crush washer orientation, hand-tighten the new device, and use the wrench to incrementally tighten (max quarter turn, then back off) until aligned, preventing crush washer binding.

Chapters

  1. 00:12Video Introduction
  2. 00:20Removing Old Muzzle Device
  3. 00:52Installing New Muzzle Device
  4. 01:15Proper Torque Procedure
  5. 02:44Final Installation & Summary

Frequently Asked Questions

What tools are needed to replace an AR-15 muzzle device?

You will need an AR armorer's wrench to remove and install the muzzle device, and a sturdy workbench vise to secure the upper receiver during the process. Ensure the firearm is unloaded before starting.

How do I properly torque an AR-15 muzzle device?

Use the armorer's wrench to tighten the device incrementally, turning it no more than a quarter turn, then backing it off slightly. Repeat until properly aligned and snug, avoiding over-tightening to prevent binding the crush washer.

What is the purpose of a crush washer when installing a muzzle device?

A crush washer is used to create a secure lock for the muzzle device. It deforms upon tightening, ensuring the device stays in place and is properly aligned, with its narrow end typically facing the shooter.

Can I install any muzzle device on my AR-15?

While many muzzle devices fit standard AR-15 barrels, always consult the muzzle device manufacturer's instructions for specific alignment requirements and compatibility. Ensure it's suitable for your rifle's caliber and intended use.

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