Picture of How to build Speargun for Less than $10
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Simple, Cheap, and Effective Hawaiian style spearfishing gun.
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Step 1: Materials

Picture of Materials
2 ft Rubber Surgical grade Tubing or Exercise bands ($3-5)
Small Section of PVC 1/2in - 1in in Diameter ($2)
1 Youth Arrow with safety tip ($3)
4 - Zip ties (.50)

Total cost for these materials should be less than 10 bucks, if not free. All these things are pretty easy to find.

Step 2: Assembly

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Take both ends of the rubber tubbing and place each side evenly onto the PVC pipe. Once in place tighten a zip tie around the the rubber tubbing and PVC, leave around a 1/2 inch of rubber tubbing at the end. Now fold the tubbing back and place another zip tie. This should hold everything nicely in place. I added a few more zip ties toward the top of the PVC, just for good measure.

Step 3: Testing

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Dry fire it a few times before you add the arrow. It will work similar to a sling shot holding the tail of the arrow in the center of the rubber tubing. Draw back and then release.

Please be safe!! I have a one eyed uncle that can testify to the fact that arrows are dangerous.
mwhit131 year ago
Why the 1" pipe? the hole through you handle should barely be bigger than the diameter of your spear shaft for accuracy reasons.

Just curious. at least theres one Hawaiian sling on here.
cybercoho723 years ago
these have been around for at least fifty years, probaly longer. they are called a Hawaiian swing and shoot spears that are about 8 feet long underwater for fish. i know i have an original one that was made back in the fiftys. so i would suggest that know one use these on land. very unacurate and you could hurt someone.
bubba j5 years ago
sorry could get sued
bubba j5 years ago
what do you think this could take out
you coul get sued if you don't add I AM NOT RESPONIPLE FOR WHAT YOU DO WITH THIS SPEAR SHOOTER so some one dosn't shoot thier neibors cat