AR-15 Front Pin Tool Set - Delrin Punch & Detent Installer/Remover by Patriot-Pin
This AR-15 front pin toolset was designed to make removing and installing the front pivot pin a breeze! This two-part front pin tool is a must-have for every AR-15 owner.
The Delrin punch is used to punch out your stubborn pin without marring up your receiver. It also has an alignment hole, in the end, you can use to drop in your detent. Then use the stainless tool to push the detent in, then rotate 90 degrees. This will keep the pressure on the detent, then simply push your front pin against the Delrin punch until the pin is past the detent, spin the pin until the detent "clicks" in the channel, and you're all set!
The Stainless Tool can also be used to remove an existing front pin if you're going to change it. Take the stainless tool and push it through the small hole on the backside of the pin, then rotate it 90 degrees. This will remove the detent out of the channel, allowing you to remove the pin. You can save yourself the trouble of the detent flying across the room if you use the Delrin punch to push the pin out, and keep the pressure on the detent with the punch.