Unplug the nail gun from the air compressor. Never attempt to clear a jam with the nail gun still attached to the compressor.
Open the jam-cleaning door on your nail gun. The jam-cleaning door is located at the tip of the nail gun and gives you easy access to the nail path. Most guns have a lever you press to release the jam-cleaning door.
Remove the jammed nail with your fingers or a set of needle-nose pliers if it is stuck.
Close the jam-cleaning door and make sure it is fastened properly. Connect the nail gun back to the air compressor, and you're ready to continue your project.