original Spyder. Low pressure chamber,lighting bolt, rear cocking set up, aka sidewinder regulator, taso turbo valve, lapco cup seal, Lapco bigshot barrel aluminum.
It is obivously more hollowed out than the stock valve, Some what of a difference in operating pressure. Includes a pin wich is more trimmed than the stock pin is. Pretty easy to install if you know your gun well.
Poor metal quality, there are metal shavings all around it. The valve/pin alignment is not good (it leaks easily ...i can' get it to stop leaking). Performance wasn't greatly increased.
This valve is ok....if you want a good low pressure valve just do it right the first time and get an AKA tornado valve. Now i'm stuck with a valve i don't use and a tornado valve.