ACI Sub-Zero Expansion Chamber

[hungfromacross]

Will an ACI Sub-Zero Expansion Chamber (4-Stage) fit on my Tippmann Model 98?

[KossaK]

Yeah it'll fit!

You need the Vertical Bottle adapter though... and that's a bit of a headache to install.
If you arent very technically inclined, hand it to an airsmith or someone with more experience. The Vertical bottle adapter was a royal pain for me to put in my gun.. i was scared i was stripping threads... but i got it in.

Just so you know, i use an ACI sub-zero 6 stage on my tippmann. it's pretty comfy really. so your 4 stage will work no problem, assuming you can install the vertical bottle adapter properly.

-Koss