Currently either Spyder Electra ACS with stainless Powerlyte Speedline 2 piece, empire B reloader, dye stickies, magnetic detents -or-
CCM phantom w/carbon fiber barrel, clear parts w/10round feed
Anything on the mid, to larger side, Marbs work greath though.
Incredible shine on the inside, very highly polished
Front lines up with the back perfectly
I have the stainless steel which is slightly heavy
When I had just gotten my first job senior year i wanted to buy a new barrel for my spider (who doesn't). at the shop i asked the owner which were the better quality barrels. he initially told me dye boomsticks which my friend confirmed, but then brought out the speedline 2 piece and explained to me that they were a newer company but produced excellent barrels that were on par with the best of the boomsticks (earlier models before they got so busy and rushed them).
This barrel is as accurate is i've seen. i have used it on two spiders and let another friend of mine use it on his and every time the shots are beatiful. the paint flies straight and has a nice consisten drop to it so you can anticipate your shot better.
Great barrel, I don't think you can find the stainless anymore, but if you can buy it.