A Homemade Propane Rifle Made From Some Tubing, a Plastic Bottle, and a Self-Igniting Propane Torch

TheBackyardScientist recently created a homemade propane rifle made from some tubing, a plastic bottle, and a self-igniting propane torch. In the end, he ultimately decided to create something a little more “explody” in the form of a propane cannon. The creation of both devices was inspired by a similar project from NightHawkInLight.