CCI Revolution - sketch of it's operation? Animation!?

[Siress]

Multiple people have tried to describe the inner workings of this gun to me, and I have no idea what's going on. Last I had heard, it was a semiauto. Now it's a pump. But the pump only chambers a ball. So it's a semiauto valve with a manual bolt. (!?) Then I hear it has a balanced valve...? Confusion abounds.

Can anyone that knows how it works please create a simple sketch of the internals with air pathways indicated?

What I really need is an animation of the firing cycle. Paging Ydna!

[Rusty Brass]

I have one. I've torn it apart many times... but I couldn't tell ya with absolute certainty how it works.
What I think is going on: there is a piston that floats inside a dump chamber. It has a small diameter tube protruding from the rear that pulls double duty as a spring guide and air passage. The piston itself has an o-ring on both ends - the rear end is a larger diameter than the front. Clear as mud? Here's a video that will show you the parts I'm talking about

So, starting at an un-aired up state the spring at the rear of the piston pushes it forward in the dump chamber so that the front and rear o-rings seal the chamber closed. The trigger sear holds the piston in this position. When the gun is aired up the air enters the sealed dump chamber through the small diameter tube and the action is primed. The trigger is pulled which lowers the sear and, due to the piston's larger rear face, the contained pressure forces it to move to the rear which then dumps the dump chamber through the front power tube (gun fires). At some point early on as the piston moves back it closes the passage that supplies air to the dump chamber. Once the dump chamber is empty the spring returns the piston forward, the sear automatically resets, the dump chamber is sealed, the air passage re-opens, the gun is once again ready to fire.


I think. I'm no rocket surgeon though.

All the bolt does is move back and forth when you pump it to open and close the breach to load a ball. Nothing to do with the main firing sequence. You can just keep pulling the trigger and it'll go pop every time.

[Siress]

That video was perfect. That is remarkably similar to a traditional Nelson system. The thing I just realized here is that it's still breech drop. Probably explains the comment in the video about it not being great with brittle paint. Thanks for explaining the action to me, as that was the most mysterious aspect after seeing the parts diagram.