Because they could easily be used as firearm silencers.
yes silencers are illegal in montana
No, it is illegal to own or use a paintball silencer without an actuall firearm silencer permit. You can buy mock suppressors, which look like silencers but do no significant effect for sound dampening.
If suppressors for real guns are then most likely. since they're illegal in the US I'm guessing they are in Canada as well
Depending on who you are, no.
There Are no true silencers or suppressors for paintball markers, only mock ones. You need a firearm suppressor permit in order to get a real suppressor, so companies don't make any. Also A paintball gun signature is fairly quiet.
Depends on who is using them and for what.
no it is not paintball guns are not illegal firearms like other weapons and a paintball guna cant kill you
check with the prosecutor's office
Silencers are illegal in SOME states for the general public, but only a few. See link below
There is not licencing for paintball markers.
Unfortunately yes. But there are ways around it.