I have been looking for one of these for 6 years now. It is the Xindi rifle from Enterprise. While not the best show in the world, I thought this design and sculpt was fantastic! I recently acquired a casting of a stunt rifle from the set and spent many hours on it, making it as perfect as I could. I had to make the hoses, as they were not supplied to me, and the frosted acrylic emitter tip. I also machined the trigger buttons out of aluminum, which I feel adds a nice touch.
The finish is as close as I could find to the original. It is a mirage paint, that changes from green to purple. I was going to do a high gloss finish, but the original had more of a matte finish, so that is what I went with. I am very excited to add this to my collection!