Tuning Fix impact resealing

It's not hard to do. I just resealed mine a month ago or so for the first time, but do as Odoyle suggested first. There are helpful YT videos that will help you to see how to break the gun down. Probably sorting out the O-rings you need in the correct Buna hardness is more difficult, but if you have deep pockets you can just order a reseal kit from various sources.