Quick Tip: How to Install the Geissele Trigger
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.












