If it has a factory installed ACT system there will be a shiny blue or black button like piece on the handle, if it was modded with after market parts you will need to open it and check for parts. If it's an older model it most likely not have ACT unless it was modded, if it's newer it probably has act.
There are actually one in the same. There was never an orginial "model 98" only the custom series. The difference though would be found in the Tippmann 98 custom Platinum series with its easy to remove body.
Dennis Tippmann is the founder of Tippmann paintball.
No it does not. there is only one 98 shroud: Related links
Yes, the tippmann 98 and the tippmann custom are the same marker, therefore the threading of the barrel will be the same.
No. the thread pattern is NOT the same
No. they have two different receivers.
yes
hold the marker steady, unscrew the tank counter clockwise.
No. The trigger assembly for the a5 is set up very different from the 98 custom.
No, only a Tippmann A-5 comes with a cyclone feed standard. However a Cyclone can be purchased that will fit the 98 Custom.
No, they will not both fit unless you have it custom fitted.
No, the screw set is off and there is holes for the cyclone feed.