I watched a couple of videos today on how to install the performance dynamic trigger on a PDP. I don't think I want give it a try myself. I called Walther customer service and they said they will do it for $115 which includes labor and shipping charges both ways. They want the whole gun so that they can shoot it to make sure it is "fully functional". Turnaround time is typically about two weeks. As soon as I can find a black trigger kit I plan on having my FFL buddy send it off for me. I thought you guys might find this information helpful.