@Trance-Addict

A full CO2 tank at comfortable room temp (70ish) is around 900psi, but as soon as it gets warm that pressure rises quickly. on a 100deg day a tank left out can blow the burst disk (1800psi).

Check out the old PMI Piranah longbarrel or shortbarrel CA guns. No internal regulator, whatever pressure went into the valve, came out of the valve. They were the same internal design as the WGP sniper (the original cocker before it auto-cocked), still the same base internal design, right down to the squash nut that holds the valve in.

My apologies about the age of the shocker, the years all run together at this point.

As for the shocker - The arena I owned and PVi had a great relationship. We were in the same city, about 30min from eachother. One of my refs worked for PVi at the time. There was a "falling out" between them and SP. SP did not buy the patent at the time (they may have by now), they split off, left Hough and company in the dust and made their own gun. The "warrior" later renamed to the Cyber9000 was the joint venture gun. 50 prototypes were made, including a pink one for one of the owners of PVi. Last I heard from them, the patent and parts for 100 guns was up for sale, but that was years ago.

The c9k was pretty slick. It had all the functionality of a shocker except that it had a screen on the back with a few buttons to time it and such. Originally it was supposed to come with a J&J stainless 18" barrel. It shot extremely well, as good as the shockers of the day. I had one for a long time, but eventually parts became impossible to find. Mt C9k is sitting in some guy's personal paintball museum supposedly. For what the guy paid for a non-working and non-repairable gun, I don't care if he ran it over with his car.

My source is my memory. Granted it may not be the best source, but being right in the thick of it with PVi and SP - the info I have came first hand.

There was a time when SP was trying to patent any electro-pneumatic device. I don't know how that all worked out, but we were trying to find the PVi team to contest it. SP did not own the C9k patent at that time, we wanted to find PVi to prove SP did not come up with the idea first. I've been out of the industry for a number of years now, I have no idea how any of that ended.