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How to make an airsoft gun out of a cap gun

Updated February 21, 2017

Airsoft guns are toy guns that come in a number of shapes and sizes and let the owner experience target shooting with a weapon without the danger of one that uses gunpowder. An airsoft gun can fire a soft projectile or a BB pellet and can be purchased from a toy or hobby shop. You can make your own airsoft gun by adapting a cap gun to shoot BB pellets. You will also need exploding cap-gun caps and some BB pellets in order to make an airsoft gun out of the cap gun. Adult supervision is required if a child is making the airsoft gun.

Insert the tip of a utility knife into the hole in the muzzle at the end of the barrel of an empty cap gun. Twist the utility knife to enlarge the hole.

Continue twisting the utility knife until the muzzle at the end of the barrel has been completely opened up, even with the edges of the barrel.

Press down on the black cylinder release lever that is to the rear just beneath the round cylinder on the left side of the cap gun. Hold down on the lever to release the round cylinder from the frame of the cap gun.

Swing the round cylinder out from its hinge at the centre of the frame of the cap gun to expose the holes that BB pellets will be inserted into so that they can be fired out of the barrel.

Insert the utility knife into the holes on the inside of the cylinder. Twist the tip of the utility knife to enlarge each hole until it is big enough for a BB pellet to be inserted into.

Insert a BB pellet into each of the holes on the inside of the cylinder. Push the BB pellet into the hole with the tweezers.

Insert a cap-gun cap into each of the holes on the inside of the cylinder. Push the cap-gun cap into the hole with the tweezers.

Close the cylinder so that it clicks back into the frame of the cap gun.

Aim the airsoft gun at a target in your back yard, such as the side of the house or a patio chair. Press the trigger to fire off an airsoft BB at the target.

Tip

Wear goggles when firing off an airsoft gun so that your eyes are protected. Make sure the cap gun is empty before you start to make the airsoft gun.

Warning

Do not paint over the orange tip of the cap gun because you could be shot at by a policeman if it is carried outside and thought to be real.

Things You'll Need

  • Utility knife
  • Cap-gun caps
  • Airsoft BBs
  • Tweezers
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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."