Oh, it actually shoots a gas? I thought it fired a projectile propelled by compressed air. I saw a few fake guns in a local surplus store, that were neither real nor airsoft, and I thought that they were like this, but they turned out to be metal bb guns, so target shooting, I presume.
I've never even heard of a pistol that shoots CS gas before. What do the bullets look like? 9mm PAK or something completely different?
What sort of keywords should I look for to find one of these on eGun, and do I need some sort of permit?