Paintball

[B.R.]

picked this changer up in a lot on ebay.
12 gram changer 001.jpg
notice anything ubusual?
the pierce pin is on the cap.
you insert the 12 gram backwards to what youd normally think (i have the 12ie backwards in the pic)
turn the cap in to the position in the second pic. wich puts no pressure on the 12 gram.
12 gram changer 004.jpg
then you give it a smack on the back wich pierces it.
the pressure pushes the cap out to the position in the pic.
i was a bit nervous to try it but it seams to work fine.
i dont really see much benefit to the system.
its not really any faster than a cci threaded one
and you might lose a shot to extra space.
i geuss you wouldnt get liquid in the first shot.
has "ngs cv1" stamped into it

[ApoC_101]

huh wow, never seen anything like that, cool find

[russc]

That's actually super cool. Reminds me of a TPX.

[THE-SHOOTIST]

I believe I remember this piece. 'NGS' stood for 'National Gun Sports', the maker of the short-lived 'Savage' line of guns. I think I handled this at the '90 World Cup at their booth, and I may have a pic of it and the flyer for it. I don't think that it was released as the owner of NGS died shortly thereafter.
I gotta scrounge through some stuff...................

[dundadun]

Might be good for guns holstered in a down position that might flood with liquid. I like the idea too.

[ApoC_101]

seems to me the rear oring would need to get replaced often, as the wear from loading and unloading it would eventually cause it to leak... and waste your 12 gram.

[Smiley]

A guy on our team used one until the RattAttack's came out.

[the_chemist]

"because of the large expansion chamber volume, you will get more shots from a cartridge too"

[Jackson]

Originally Posted by the_chemist

"because of the large expansion chamber volume, you will get more shots from a cartridge too"

Gee whiz. I should just vent my 12 grams into the atmosphere. Largest expansion chamber possible. That way I'd get the most shots possible from a 12 gram!!!

Gotta love the old school BS marketing hype.

[HP_Lovecraft]

Originally Posted by Jackson

Gotta love the old school BS marketing hype.

You would get more shots. The larger surface area means that the liquid co2 has absorb ambient heat faster, as less liquid co2 is dispersed into the downstream.

Granted, this is only true comparing 2 backchecked systems. Without the backcheck valve, all that volume is wasted as the system fills it to equalize.