What would be a good alloy/ dimensions for an aluminum blowgun?

I would like to order an aluminum tube from McMasters.com but I'm not sure of what kind I should get for a blowgun.  If you could put in the dimensions you would get for a blowgun at http://www.mcmaster.com/#aluminum/=7mdkul that would be great, thank you. 

The only set thing I need for the tube is for it to be less than a .50 cal blowgun...

If you could tell me if this would be good for a blowgun that would be great: http://www.mcmaster.com/#aluminum/=7mdm28


Owenmon5 years ago
Wafflicious (author)  Owenmon5 years ago