Computer duster pin fired pneumatic cannon?

[slaps]

I mean, is this a thing? I'm not serious about pneumatic cannons yet, but think it will make a great summer project. Would something like this fall under any firearm laws or such needing a lower of sorts to hit canister? Sorry if this post isn't containing a ton of information about the subject, I was just wondering if you would be able to get anything off the ground.

[jackssmirkingrevenge]

Duster cans contain very low pressure, you'll basically have something weaker than an airsoft gun.

Assuming you're in the US, in most places even a powerful air gun is generally not regulated.