How to Build a Spring Powered Dart Gun

Updated February 21, 2017

Spring-powered dart guns shoot farther and have more power than those powered by a rubber band. You can make your own miniature spring powered dart gun from a few items commonly found in the house. You will also need a dart to fire from the gun and about an hour of time. Your spring-powered dart gun will need to be reloaded each time it is fired, but no target that it is aimed at will be safe from your “trigger finger”.

Lay some newspaper down on a table. Unscrew the plastic pen. Put the spring that was inside of the plastic pen onto the newspaper. Discard the disassembled parts of the pen except for the barrel.

Cut the barrel of the pen about halfway down its length using the scissors. Use the needle nosed pliers to squeeze one end of the shorter half of the barrel so that it is smaller than the other end.

Squeeze the sides of the paper clip together using the needle nosed pliers.

Insert the end of the paper clip into the end of the spring and slide it on so that it is hooked around the first link of the spring.

Slide the spring down into the squeezed end of the shorter half of the barrel that was cut. Use the needle nosed pliers to bend the other end of the barrel so that it is closed.

Place the end of the barrel that has the spring inside of it into one end of the other half of the barrel that was cut. Wrap cellophane tape around the seam between the two halves to help hold them together.

Insert the dart into the open end of the barrel. Push the dart down into the barrel using a straw as far down as it will go against the spring inside. Hold the straw so that the dart doesn’t move.

Insert the push pin into the barrel just in front of the dart. Remove the straw.

Aim the open end of the spring powered dart gun you have made at a far wall. Pull out the push pin to fire the dart.


Only fire soft darts to avoid damaging anything.


Never aim a toy gun at another person.

Things You'll Need

  • Newspaper
  • Paper clip
  • Scissors
  • Push pin
  • Needle-nosed pliers
  • Cellophane tape
  • Plastic pen
  • Straw
  • Dart
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About the Author

Marshal M. Rosenthal is a technology maven with more than 15 years of editorial experience. A graduate of Brooks Institute of Photography with a Bachelor of Arts in photographic arts, his editorial work has appeared both domestically as well as internationally in publications such as "Home Theater," "Electronic House," "eGear," "Computer and Video Games" and "Digitrends."