A simple, but effective tool that makes a difficult task much easier. - KNS Precision AR15 Hammer/Trigger Pin Assembly Guides

For those who, from time to time, replace their AR triggers, getting those two trigger retention pins to line up to the pin holes when the trigger springs put the trigger housing under significant pressure, this is the tool for you. It allows you to both push the old pins out and with the pointed front ends, makes it easy to run the new pins through and into place. I recommend this tool.