This part of the Video will show you how to take apart the gun from the reciever to the inner barrel

Eventhough I left my scope on while I took apart the bolt, and the outer/inner barrel, just the removal of the inner barrel can throw off your aim a bit. But that is to be expected. I left my scope ON the frame to illiminate one more headache. So adjusting the hop-up will be miniscule as well as the scope fine adjustment…..