How to Turn a sling shot into a deadly spear gun
Learn how you can change a sling shot into a deadly spear gun. To make this gun you will need two plastic ties, 2" diameter PVC pipe, two end caps for the pipe, 1/4" to 1/2" dowel rods and a slingshot. This spear gun is very powerful and should only be used for target shooting, spear fishing and hunting. Never point this gun at another person.