Gas Seal for 2in Potato Cannon

This is a gas seal designed to launch projectiles out of a potato launcher, or spud gun, that has a 2 inch diameter barrel. Print with 100% infill for better chance of reuse after a launch. After you print it, put some tape around the outside tabs. The gas seal is slightly smaller than the diameter of a 2 inch barrel, but when you put tape around the tabs, it becomes larger than the barrel and the tabs will flex so that it makes a really good seal against the barrel. I put two layers of scot