That's very cool you want to support someone from the forum but be aware class III stuff is a bit different and if possible buy from someone local to your area or state. If you purchase a suppressor from a dealer out of state, it'll add a month to your wait time.
I'm not sure if Carpsniperg2 is a class III dealer or not but I can tell you this, I recently purchased from him and he couldn't have been any better to work with and I wouldn't think twice about buying from him again.