How To Install a Gas Tube on AR Rifles

Published on December 8, 2023
Duration: 3:57

This guide details the process of installing a gas tube onto an AR-15 rifle, a crucial step in the firearm's gas system. It emphasizes the use of specific tools like needle-nose pliers and flat-face channel locks for efficient roll pin installation. The instructions cover preparing the gas block, orienting the gas tube, starting and seating the roll pin, and achieving a flush finish, with an expert from AT3 Tactical sharing time-saving techniques.

Quick Summary

To install an AR-15 gas tube, first prepare the gas block by backing off set screws and sliding it onto the barrel. Orient the gas tube with the port down and seat it until the roll pin holes align. Use needle-nose pliers to hold the roll pin and flat-face channel locks to drive it flush, ensuring proper alignment throughout the process.

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 are the essential tools for installing an AR-15 gas tube?

You'll need needle-nose pliers (preferably spring-loaded), an Allen or Torx wrench for gas block set screws, and flat-face channel locks. Optional tools include soft tape to protect the gas block and a 1/16th inch roll pin punch for perfect flushness.

How do I ensure the gas tube is correctly seated in the gas block?

Orient the gas tube with the gas port hole downwards. Insert it into the gas block until the holes for the roll pin are perfectly aligned, allowing light to pass through them.

What is the best method for installing the gas tube roll pin?

Use needle-nose pliers to hold the roll pin. With flat-face channel locks, grip the gas block and tube assembly and squeeze to drive the roll pin in. Aim to make it flush with the surface.

Can I damage my AR-15 gas block during installation?

Yes, improper technique can cause damage. Using soft tape on the jaws of your channel locks can protect the gas block's finish. Ensure the roll pin is started straight and driven in evenly.

Related News

All News →

More Gunsmithing & DIY Videos You Might Like

More from AT3 Tactical

View all →