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How to Build a potato gun launcher w/ interchangeable barrels

Inside view of a combustion chamber featuring an ignition system.

Ooooo. Step back, Jack. This one has the taser ignition. Not only that, this dude give you desert decal instructions and ways to camo your potato gun. This potato gun tutorial is pure instruction, in two parts. Kudos. Watch this nifty weapon hack to learn how to build a potato gun launcher with interchangeable barrels. This potato gun "spudzooka" with interchangeable barrels is powered by taser ignition. It also resembles those bazookas and RPGs causing so much havoc on the world today.

It has the ability to change out barrels to either 2" or 3".

Check out the second video for a complete overview of ammunition and warheads used for potato guns of all makes and models.

Apple's iOS 26 and iPadOS 26 updates are packed with new features, and you can try them before almost everyone else. First, check Gadget Hacks' list of supported iPhone and iPad models, then follow the step-by-step guide to install the iOS/iPadOS 26 beta — no paid developer account required.