Just for the record, as far as i can see/feel it has 4 upper skinny pins (like you can see in the picture) all in a line.
Then the 3rd skinny pin has a fat cone pin on the opposite side which moves up as well as down.
Then off set from the 3rd skinny pin on the upper & lower part of the chanmber is has 2 tiny little ball bearings.
One more thing, Not sure if it's anything worth noting, but if you look at the picture, the right hand side of the cylinder has 4 holes in it which are inline with the 4 skinny pins.
That's as far as I can see in to it
