Quick question about valve seat on XValve/RT Valve

[TAC-ELF]

Please refer to http://www.airgun.com/downloads/retroexploded1.pdf for this question:

Working rearwards: First you have the regulator valve pin, followed by the valve seat o-ring, and the valve seat holder. After that you have part #779 which is is a small o-ring, then the back half of the valve body.

The question is, where does this o-ring (#779) go? The diagram doesn't really show:

1. Into the back half of the regulator body where the tip of the regulator valve pin goes in.

- or -

2. Embedded in the rear side of the valve-seat holder (the side with the cross-wise grooves).

It fits perfectly in both positions. I think this may have been part of my troubles all along. When I first took the gun apart about about a month ago, this little o-ring was just sitting on the regulator valve pin about half-way down its length.

Thanks in advance all you 'mag gurus. I specifically postponed sending my gun back to AGD to see if this was my problem.

[TAC-ELF]

Looks like I answered my own question. For those seeking guidance, see: http://www.airgun.com/xmag/html/oring.html

O-ring part #779 is embedded into the rear half of the valve, not the valve seat holder's back side (with the cross-wise grooves).

[Dayspring]

It really doesn't matter, as sometimes you'll see it in the valve, and sometimes in the brass part.

[Mer]

Those X-Mag guides are nice, aren't they.

[TAC-ELF]

Those X-Mag guides are nice, aren't they.
Yes they are.