FCD - Gas Block Pin Tool GPT - Gas Tube Install

Published on December 5, 2020
Duration: 3:40

This guide details the process of installing an AR-15 gas tube into a gas block using specialized tools like the Forward Controls Design Gas Block Pin Tool (GPT) and Geissele punches. The FCD GPT ensures the gas block remains stable, allowing for precise alignment of the gas tube and the roll pin holes. The process involves starting the roll pin with a starter punch and then fully driving it with a 1/16th punch, ensuring it is centered and flush for a secure installation.

Quick Summary

The FCD GPT tool securely holds an AR-15 gas block, simplifying gas tube installation by preventing movement. Use a Geissele starter punch to seat the roll pin, then a 1/16th punch to drive it fully through the aligned holes. Ensure the roll pin is centered and flush on both sides for a secure fit.

Chapters

  1. 00:05Introduction & Project Overview
  2. 00:20Introducing FCD GPT Tool
  3. 00:54Gas Tube & Gas Block Anatomy
  4. 01:29Positioning for Roll Pin
  5. 01:58Using Geissele Gas Block Tools
  6. 02:39Driving the Roll Pin
  7. 03:06Final Pin Adjustment
  8. 03:20Completed Installation

Frequently Asked Questions

What is the purpose of the Forward Controls Design Gas Block Pin Tool (GPT)?

The FCD GPT is a specialized jig designed to securely hold an AR-15 gas block stationary during installation. This stability is crucial for accurately aligning the gas tube and its roll pin holes, making the process much easier and more precise.

What tools are recommended for installing an AR-15 gas tube roll pin?

For installing an AR-15 gas tube roll pin, it's recommended to use a starter punch to initially seat the pin and then a 1/16th punch to drive it fully. Specialized tools like the Geissele Gas Block Tools are often used for this purpose.

How do you ensure an AR-15 gas tube is properly installed in the gas block?

Proper installation involves aligning the gas tube's end hole with the gas block's hole, then driving a roll pin through both. After installation, verify the roll pin is centered and flush on both sides of the gas block for a secure and correct fit.

What are the key steps in using the FCD GPT for gas tube installation?

First, place the gas tube and gas block into the FCD GPT, ensuring correct orientation. Align the holes, use a starter punch to seat the roll pin, then a 1/16th punch to drive it fully. Finally, check for centering and flushness.

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