$355 Davidson Defense AR9 Build - Box to Combat Load - Cheapest 9mm AR15 AR9 - Mud and Drop Testing

Published on June 14, 2020
Duration: 18:17

This video provides a practical, hands-on review of the $355 Davidson Defense AR9 build, focusing on its performance under extreme conditions. The instructor, demonstrating high authority and practical expertise, subjects the firearm to rigorous mud and drop testing. Key takeaways include the build's surprising reliability for its cost, specific component insights, and troubleshooting advice for budget-oriented AR9 platforms.

Quick Summary

The $355 Davidson Defense AR9 build proved surprisingly reliable during rigorous mud and drop testing, functioning through approximately 100 rounds after submersion. While the blowback system held up, modifications like bending the ejector were necessary for the budget GunTec magwell adapter, which also presented magazine seating challenges.

Chapters

  1. 00:00Introduction and Action Montage
  2. 01:34Build Overview and Cost Breakdown
  3. 03:37Component Specifics and Modifications
  4. 05:05Initial Function and Mud Testing
  5. 05:44High-Volume Reliability Drills
  6. 08:43Second Mud Test and Troubleshooting
  7. 12:28Steel Case Ammo Test
  8. 13:43Final Verdict and Conclusion

Frequently Asked Questions

How reliable is the Davidson Defense AR9 build under harsh conditions?

The $355 Davidson Defense AR9 build demonstrated surprising reliability, functioning through approximately 100 rounds after being submerged in mud and clay. While the blowback system remained functional, external controls like the safety selector became stiff.

What modifications were necessary for the Davidson Defense AR9 build?

The speaker had to bend the ejector on the GunTec magwell adapter for proper function. Additionally, the adapter required significant force to seat magazines, indicating potential fitment issues common with budget components.

What are the pros and cons of the 7.5-inch barrel on the AR9?

The 7.5-inch barrel is recommended for its portability and suitability for home defense. Its compact size makes the firearm easier to maneuver in confined spaces, though specific ballistic performance details are not provided.

What issues were encountered with the GunTec magwell adapter?

The GunTec magwell adapter required bending the ejector for proper function and presented difficulties with magazine seating, needing substantial force to insert magazines. This suggests potential hardware quality issues with the adapter.

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