Though this rifle only appeared in a small number of episodes, I believe it to be one of the best looking props ever made for the show. It has a very complex paint scheme, and a really cool overall design.
As far as build ups go, this was easily the most complicated and time consuming paint job I've ever attempted. By a stroke of good luck, it actually turned out quite nicely, and I'm very happy with it. There are a few boogers here and there in the paint, but they are not really noticeable in the overall presentation.
I made an effort to chronicle the build up process for those of you who are curious. Not only do I set through most of the significant steps of building, but I also include lots of tips, tricks, techniques, and even paint codes. Check it out.