If your gun is not firing, ensure that you have darts loaded in the chamber and that they are loaded properly. The barrel may be clogged, so check the barrel for any debris. The final problem may be that the large spring in the gun needs replacement. If the previous issues have been resolved with no success, open up the Nerf gun. You will see a large spring towards the top of the gun. Remove the spring for replacement. See our [[Nerf Dart Tag Furyfire Troubleshooting|troubleshooting guide]] for more details.