Velocity Jr. w/gangstar board
Empire Magna Hopper
68/4500 Low Pressure Crossfire Fiber Tank
Air Effecient (depending on your settings/adjustments)
Low Recoil (without spacers)
Maybe Tech T could include some extra Orings
The bolt is the size of a large sharpie marker but half the length. There isn't the boost technology stuff anymore so now you just insert the bolt. You screw in all the screws in the back cap because you don't need to guide in the bolt. You don't lube as many orings now. I was out of air when I got it so I had to wait a little while.
I got some air finally today and put the Rail into response mode, thanks to Tadao. This thing really spun some heads when people heard how quiet and fast it was. I just left the gun hooked to the air compressor (paintball one) and ripped on the trigger for like 5 minutes straight. I then took it to the chrono and it averaged +/-5 fps with some 2 year old paint. I was indoors so I didn't get to test accuracy. The air effeciency was pretty good considering I haven't broken in my Hyper 2 reg yet, well after 10,000 shots of air today, I think it is broken in now. Anyway, you can change the operating pressure with the spacers included. Two will yield a high pressure/low volume or none will yield a low pressure/high volume setup. I haven't tried adding the two spacers but suposevly two spacers give better efficiency by reducing how much air is needed to make the bolt cycle.
All in all, the bolt is worth the price of $80 but make sure you by an extra oring kit and the inner top hat orings so you can keep on sinning heads without any problems.
I would recommend this bolt to anyone that is tired of their stock bolt's kick and maintence. Make sure you go online to set up the board settings right and give the bolt/reg to get broken in so the effeciency can get better.