Barrel Corrosion & Fix

Published on July 24, 2021
Duration: 9:52

This guide details how to effectively remove and prevent barrel corrosion on an AR-15. It emphasizes using a borescope for inspection, Evapo-Rust for rust removal, and specialized bore cleaners for post-soak cleaning. The expert instruction highlights the importance of proper cleaning and the application of protectants to maintain barrel integrity.

Quick Summary

To remove rust from an AR-15 barrel, submerge it in Evapo-Rust for approximately 12 hours. After soaking, flush the barrel and then use a brushless bore cleaner like Wipe-Out Tactical Advantage to remove any remaining residue and carbon. Always apply a protectant afterward.

Chapters

  1. 00:00Intro & Corrosion Cause
  2. 01:04Plan for Rust Removal
  3. 01:28Barrel Exterior & Initial Borescope
  4. 01:54Borescope: Muzzle & Crown (Before)
  5. 03:00Borescope: Gas Port & Bore (Before)
  6. 04:31Evapo-Rust Soak Process
  7. 05:44Post-Soak Inspection & Cleaning Products
  8. 06:30Borescope: Muzzle & Crown (After)
  9. 07:22Borescope: Gas Port & Bore (After)
  10. 08:10Borescope: Throat & Chamber (After)
  11. 09:19Final Thoughts & Caution

Frequently Asked Questions

How can I remove rust from my AR-15 barrel?

To remove rust from an AR-15 barrel, submerge it in Evapo-Rust for approximately 12 hours. After soaking, flush the barrel and then use a brushless bore cleaner like Wipe-Out Tactical Advantage to remove any remaining residue and carbon.

What causes corrosion in an AR-15 barrel if not corrosive ammo?

Corrosion in an AR-15 barrel can be caused by environmental factors like humidity and heat, especially if the barrel was not properly protected with oil after cleaning and before storage or shipping.

Is Evapo-Rust safe for gun barrels?

Yes, Evapo-Rust is a rust remover that is generally considered safe for gun barrels. It's non-toxic and biodegradable. However, always follow up with proper cleaning and lubrication to protect the metal.

What is the best way to clean a heavily corroded AR-15 bore?

For heavily corroded bores, a multi-step process is recommended: initial inspection with a borescope, a long soak in Evapo-Rust, followed by thorough cleaning with specialized bore cleaners like Wipe-Out Tactical Advantage and Accelerator, and finally, re-application of a protective lubricant.

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