How To Install a Single Stage Trigger on AR Rifles - The Easy Way

Published on February 23, 2024
Duration: 6:59

This guide details the process of installing an enhanced nickel-teflon single-stage trigger on AR-15 rifles. It covers the proper installation of the trigger spring, hammer spring, disconnector, and the precise insertion of trigger and hammer pins. The video emphasizes careful handling of components under spring tension and provides tips for a smooth installation.

Quick Summary

Installing an AR-15 single-stage trigger involves carefully placing the trigger spring under the sear with feet forward, and the hammer spring under the hammer. Use a 5/32-inch punch to drive pins, starting with the long, smooth side first for better component retention.

Chapters

  1. 00:00Introduction and Tools
  2. 00:33Recommended Tools List
  3. 00:40Trigger Kit Components
  4. 00:49Essential Tools for Installation
  5. 01:04Reference to AR-15 Series
  6. 01:21Monthly Giveaway
  7. 01:32Step 1: Install Trigger Spring
  8. 02:08Proper Trigger Spring Placement
  9. 02:40Step 2: Install Hammer Spring
  10. 02:53Step 3: Disconnector and Spring
  11. 03:21Step 4: Drop Trigger into Lower
  12. 03:49Step 5: Set First Trigger Pin (Phase 1)
  13. 04:26Step 6: Set First Trigger Pin (Phase 2)
  14. 04:44Step 7: Install the Hammer
  15. 05:17Step 8: Secure Hammer with Pin
  16. 05:41Installation Complete
  17. 05:50How to Remove a Trigger (Reverse)
  18. 06:34Additional AT3 Resources

Frequently Asked Questions

What are the essential tools for installing an AR-15 single-stage trigger?

You'll need a vice, a Magwell adapter (like a Magpul Bev Block), a hammer, and a 5/32-inch punch. These tools are crucial for holding components securely and for driving pins during the installation process.

How do you properly install the trigger spring on an AR-15 single-stage trigger?

The trigger spring's rectangular portion must sit under the trigger sear with its 'feet' kicked forward. A helpful technique is to place one side over the trigger pin hole, then stretch and capture the other side, avoiding excessive force.

What is a key tip for inserting the trigger and disconnector into the AR-15 lower receiver?

When inserting the trigger and disconnector, you must slightly decompress the assembly to align the trigger pin hole. Then, insert a punch through the hole to hold everything in place until the pin is fully installed.

How can you ensure a smooth installation of AR-15 trigger and hammer pins?

Start by inserting the long, smoother side of the pin first, as this helps hold the control group together. If the pin doesn't slide easily, wiggle the components slightly until it goes through smoothly.

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