The 12 gram cartridges are normally used in the hand held pistols that you
can buy. They were also used in some of the older style pump action guns,
RazorBack being one of them. As far as using them with your Aggressor, it
really is a non-starter.

Firstly as you pointed out you will need a device that will fit to the gun
and clamp the cartridge in place. Personally I have not seen these
available, unless the gun has been made that way. You would normally place
them in a holding bay at the rear of your gun and then turn a thumb screw
until the end of the cartridge had been punctured. Once this is done the
cartridge is locked in place and the gun ready to fire.

Secondly you'll probably only get about 40-50 shots from the cartridge. In
otherwords you'll be reloading your cartridges more often than the
paintballs inside your hopper.

Ditch the cartridges (safely - do not try to open them) and use the 12 oz
bottle, you'll get many more shots and the bottle will fit directly onto
your gun. That is the more common setup.

Most important of all - have fun playing! Enjoy your new gun.

Stu
"Bob" <Bob1472@hotmail.com> wrote in message
news:2f6deaaa.0311131806.7aec05a6@posting.google.c om...
> I am a total newbie to paintball, and I just received my new Kingman
> Aggressor XT today...To try it out right away, I got a few 12 gram CO2
> cartridges (filled), in addition to an empty 12oz Chromoly...My
> question is, what type of an adapter do I need to use the small,
> silver 12g cartridges with my Aggressor? Is there a certain name for
> it? To a novice like me, those small CO2 cartridges look completely
> sealed, and I am curious as to how the gun will open/hold them...
>
> Any help would be greatly appreciated!
> Bob