How To Install a Gas Tube on AR Rifles

Published on December 8, 2023
Duration: 3:57

This guide, presented by Randy from AT3 Tactical, details the step-by-step process for installing a gas tube onto an AR-15 rifle. It covers necessary tools, preparing the gas block and barrel, seating the gas tube, and correctly installing the roll pin. The instruction emphasizes techniques for achieving a flush roll pin and references additional resources for related AR-15 build tasks.

Quick Summary

Installing an AR-15 gas tube involves seating the tube into the gas block, ensuring proper alignment by checking for light through the roll pin holes. Use needle-nose pliers to start the roll pin, then channel locks or a 1/16th inch punch to drive it flush. Tools like Knipex channel locks and Pittsburgh needle-nose pliers are recommended.

Chapters

  1. 00:00Introduction to Gas Tube Installation
  2. 00:26Recommended Tools for Installation
  3. 01:16Pre-installation Checks & Resources
  4. 01:36Step 1: Prepare and Install Gas Block
  5. 02:01Step 2: Orient and Seat Gas Tube
  6. 02:30Step 3: Starting the Roll Pin
  7. 03:07Step 4: Flushing the Roll Pin
  8. 03:30Next Steps: Gas Block Alignment

Frequently Asked Questions

What tools are needed to install an AR-15 gas tube?

You'll need needle-nose pliers (mini spring-loaded preferred), an Allen or Torx wrench for gas block set screws, and flat-face channel locks. Optional but recommended is soft tape to protect the gas block's finish.

How do you properly seat the gas tube into the gas block?

Orient the gas tube with the larger gas port hole facing downwards. Gently drive it into the gas block until you can see light through the aligned roll pin holes on both components.

What is the best way to install the gas block roll pin?

Use needle-nose pliers to hold the roll pin, leaving a small tail. Align channel lock pliers perpendicular to the hole and squeeze to start the pin. Then, use the channel locks or a 1/16th inch roll pin punch to fully seat it flush.

Where can I find more AR-15 build information?

AT3 Tactical offers 'The Ultimate AR-15 Guide,' a comprehensive series covering various aspects of building and maintaining an AR-15, with episode lists and URLs provided in their videos.

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