Quick Tip: How to Install the Geissele Trigger

Published on January 17, 2024
Duration: 9:04

This guide details the installation of a Geissele SSA-E trigger into an AR-15 receiver, as demonstrated by Caleb from Brownells. The process involves careful component handling, correct spring orientation, and the use of specialized tools like a slave pin for precise alignment. Proper lubrication of engagement surfaces and a thorough function check are crucial for safe and reliable operation. The instruction emphasizes methodical steps for a successful trigger upgrade.

Quick Summary

Installing a Geissele trigger in an AR-15 requires careful attention to detail, including using a slave pin for alignment and ensuring correct hammer spring orientation. Proper lubrication of engagement surfaces with products like ALG Go-Juice is vital for smooth operation. Always perform a safety and function check after installation to confirm correct engagement and prevent receiver damage.

Chapters

  1. 00:00Introduction to Geissele Trigger Install
  2. 00:33Unboxing and Components
  3. 01:02Component Overview
  4. 02:33Trigger Installation Steps
  5. 04:21Hammer Installation Steps
  6. 07:12Safety and Function Check
  7. 07:39Lubrication of Engagement Surfaces

Frequently Asked Questions

What tools are needed to install a Geissele trigger?

You'll need a vise, a slave pin (often included or sold separately), a punch set, lubricant like ALG Go-Juice, and potentially a hammer and safety selector if not already installed. A slave pin is crucial for aligning the disconnector during pin installation.

What is the correct way to install the hammer spring for a Geissele trigger?

The front of the hammer spring must be correctly positioned on the back of the hammer. Incorrect orientation will prevent the trigger mechanism from functioning properly, so pay close attention to this detail during installation.

Why is lubrication important when installing a Geissele trigger?

Lubricating the critical sear engagement surfaces on the hammer and trigger, typically the silver (uncoated) areas, ensures smooth operation, reduces wear, and contributes to the trigger's performance and longevity. ALG Go-Juice is recommended.

How do you perform a safety and function check after installing a Geissele trigger?

After installation, cock the hammer, ensure it stays cocked, then pull the trigger while catching the hammer with your thumb to prevent damage to the receiver. This verifies proper engagement and safety function.

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