Mythbusters: Does Excessive Lubricant Cause Primer Failures In Glocks & AR-15 Rifles (HD

Published on December 8, 2014
Duration: 5:18

This Mythbusters-style test debunks the theory that excessive lubricant causes primer failures in firearms. After submerging ammunition for Glock 24 (.40 S&W) and AR-15 (.223 Remington) in motor oil for nine days, both firearms fired all rounds without issue. The video emphasizes that while extreme submersion is not recommended, proper lubrication is essential for firearm reliability.

Quick Summary

Mythbusters tested if excessive lubricant causes primer failures in Glocks and AR-15s. Ammunition submerged in motor oil for nine days fired flawlessly, demonstrating that proper lubrication is crucial for firearm reliability, and fear of over-lubing is unfounded for primer function.

Chapters

  1. 00:26Introduction and Myth Setup
  2. 00:31Preparing Ammunition for Testing
  3. 00:44Submerging Ammunition in Motor Oil
  4. 01:11Retrieving and Draining Magazines
  5. 01:43Testing Glock 24 with Oily Ammunition
  6. 02:14Glock 24 Results: No Primer Failures
  7. 02:21Preparing AR-15 for Testing
  8. 02:55Retrieving AR-15 Magazine
  9. 03:02Testing AR-15 with Oily Ammunition
  10. 03:21AR-15 Firing and Ejection Observation
  11. 03:35AR-15 Results: All Rounds Fired
  12. 03:45Conclusion: Lubrication is Essential
  13. 04:04Addressing Over-Lubrication Concerns
  14. 04:12Recommendation: Lubricate Your Firearms
  15. 04:33Final Thoughts and Viewer Engagement

Frequently Asked Questions

Does excessive lubricant cause primer failures in firearms like Glocks and AR-15s?

No, this mythbusting test showed that even after nine days submerged in motor oil, ammunition for a Glock 24 and an AR-15 fired without primer failures. While extreme submersion isn't recommended, proper lubrication is vital for firearm reliability.

What kind of ammunition was used in the lubricant test?

The test utilized Freedom Munitions 223 (55 grain) for the AR-15 and Freedom Munitions 180 grain 40 caliber for the Glock 24. Importantly, this ammunition was not military-spec with sealed primers, making the results more indicative of common practice.

Should I avoid lubricating my firearms to prevent issues?

Absolutely not. The video emphasizes that firearms, like any machine, require proper lubrication to function reliably. While you shouldn't drown your gun in oil, neglecting lubrication can lead to malfunctions. Don't fear lubrication; embrace it for better performance.

Can over-lubrication cause problems in a Glock or AR-15?

While extreme over-lubrication in specific areas like the firing pin or striker channel can potentially cause issues, it's not the same as ammunition primer failure. The primary takeaway is that proper lubrication is essential, and the fear of overdoing it shouldn't lead to under-lubricating.

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