Actually the clear cap at the end is from a kids hair spray product from "Loreal". It is the only one other than the "Johnson & Johnson" kids hair detangling products that fit this scope. The "Cepecal" caps have writing on them now and are not suitable. The red lens inside the scope is a piece of clear red plastic cut to fit into the scope end. The front of the scope has a thin red florecent rod for the scope tip. The barrel consists of the outside 1 1/4" pvc pipe, the inside has a 1" pvc pipe for the silver interior part of the barrel, and inside that is a 1" wood dowel that the barrel tip screws into. The whole blaster weighs just under 2 pounds.
Brian
P.S. I will write a tutorial later in this thread or post a new thread later with instructions and photos.