i made a mini the other day, it had the butane tank hooked upto it like this one bute i didn't use duct tape. it looks dodgey ghetto style

whats with the dodgey short barrel

sweet gun but u should give it a paint job

why use a coke bottle pvc is cheap strong and workable

the barrel isn't on straight and your holding it together with duct tape ,Ghetto style. A glue gun would be a useful purchase

nice job I recon u should decrease the diamater of the barrel and enlarge the combustion chamber though. If u can