Remove Diffuser and Inspect Components

so i'm going to remove this i just need a crescent wrench some type of wrench to remove this off of here i'm just going to get it on there loosen it up it's going to screw right off one thing make sure you pull the trigger on this thing if you don't pull the trigger when you unscrew it or you tighten it up you could scratch the ball on the needle or the seat itself the seat is carbide so you'll probably scratch the ball you would probably scratch it and now it's probably gonna leak again especially if it's brand new and you're just replacing the seat or flipping it so i'm gonna hold the trigger squeeze it in remove this and then i can release the trigger after it's moved now you can see the ball inside there i've got my seat inside here the first time you repack this gun if that ball doesn't have any scratches any pits divots or scoring on it then