Classified Defense - AR Armorer's Tools

Published on January 29, 2024
Duration: 3:15

This guide details how to modify muzzle device shims to ensure proper fitment on AR-15 barrels, particularly those lacking a relief cut. The process involves using a specialized 3D printed jig and a rotary tool to create a bevel on the shim, preventing interference with the barrel shoulder. This technique is crucial for achieving correct torque and alignment of muzzle devices.

Quick Summary

Modifying AR-15 muzzle device shims is crucial for proper barrel fitment, especially on barrels without a relief cut. Using a specialized jig and rotary tool, you can bevel the shim's inner edge to clear the barrel shoulder, ensuring correct installation and torque. This prevents interference and allows for accurate assembly of muzzle devices.

Chapters

  1. 00:00Introduction to Classified Defense Tools
  2. 00:03Showcasing Classified Defense Tools
  3. 00:08Daniel Defense Rail Wrench Alternatives
  4. 00:33Specialty Wrenches for Various Platforms
  5. 00:43Triarc and Knight's Armament Wrenches
  6. 00:56Muzzle Device Tools (Huxworks, Allen Engineering)
  7. 01:18Muzzle Device Shim Modification Jig
  8. 01:28How to Cut Shim Bevels
  9. 01:39Single vs. Multi-Shim Jigs
  10. 01:45Thread Pitch Options (1/2x28, 5/8x24)
  11. 01:51Conclusion and Tool Recommendation

Frequently Asked Questions

What are the benefits of using Classified Defense armorer's tools for AR-15 builds?

Classified Defense armorer's tools, like their beefy rail wrenches, offer superior durability compared to stock options, preventing stripped teeth. Their specialized jigs and tools ensure precise modifications and accurate torque application, protecting firearm components and ensuring reliable assembly.

Why is it necessary to modify muzzle device shims for AR-15s?

Many AR-15 muzzle device shims lack an internal relief cut. This can cause them to bind on barrels without a corresponding relief cut, preventing proper seating against the barrel shoulder. Modifying the shim with a bevel ensures it clears the shoulder for correct installation and torque.

What tools are needed to modify AR-15 muzzle device shims?

To modify muzzle device shims, you'll need a specialized 3D printed jig designed for this purpose, a vise to secure the jig, and a rotary tool with a stone bit or similar cutting attachment to create the necessary bevel on the shim's inner edge.

What specific AR-15 platforms do Classified Defense tools cater to?

Classified Defense provides specialized armorer's tools for a range of AR-15 platforms, including Daniel Defense rails (RIS-2, RIS-3), Triarc barrel nuts, Knight's Armament Rec. 7 and 10, Barrett rifles, Huxworks muzzle devices, and Allen Engineering Mark 12 muzzle devices.

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