Here is an animation I made that shows how the Freestyle works. It only shows how the firing mechanism works. I didn't bother animating the regulators - You can find regulator animations elsewhere and the regs work the same as in other guns so who cares, right?
It's a little ghetto but I'm not really a graphics guy so this was the best I could do. Enjoy!
The bright red is the HPR air and the bright yellow is the LPR air.