How to Build Lego Nerf Gun? [Easy Steps]

Are you a fan of Nerf guns and Legos? Why not combine both of your hobbies by building your own Lego Nerf gun? With a little bit of creativity and some Lego bricks, you can create a customized Nerf gun that is sure to impress your friends.

We will guide you through the step by step process of building your very own Nerf gun Lego that shoot darts.

Material Required

Before we begin, let’s gather all the necessary materials you will need to build Nerf blaster. You will need:

  • Lego bricks of various shapes and sizes
  • Trigger mechanism
  • Rubber bands
  • Scissors
  • Glue (optional)

Designing Your Lego Nerf Gun

The first step to building your nerf Lego gun is to design the blueprint. This will give you an idea of the overall size and shape of your gun, as well as the placement of the trigger and Nerf gun mechanism.

You can use a piece of paper to sketch out your design or use an online design tool to help you visualize your creation.

Building the Body

Once you have your blueprint, it’s time to start building the body of your Nerf gun. Start by laying out the base of your gun, using larger Lego bricks to create the foundation. From there, add smaller Lego bricks to create the sides of your gun.

Creating the Trigger Mechanism

When the body of your Lego toy gun is complete, it’s time to move onto the trigger mechanism. Use a small Lego piece to create the trigger, attaching it to a rubber band that will be used to fire the Nerf gun mechanism.

Attaching the Nerf Gun Mechanism

Now it’s time to attach the shooting mechanism to your Lego creation. Depending on the size of your gun, you may need to modify the mechanism to fit inside. Use a hot glue gun to secure the mechanism in place.

Adding the Finishing Touches

With the trigger and Nerf gun mechanism in place, it’s time to add the finishing touches to your lego revolver. This can include adding a sight, a handle, or any other customizations you desire.


Now that your Lego toy gun is complete, it’s time to customize and modify it to make it truly your own. You can add paint or decals to give it a unique look, or even use different colored Lego bricks to create a colorful design.

Tips and Tricks

  • Use different sized rubber bands to adjust the firing strength of your Nerf gun
  • Consider adding a stock to the back of your Nerf guns for added stability
  • Experiment with different designs and customizations to make your Nerf gun truly unique


Building your own Lego Nerf guns is a fun and creative way to combine two popular hobbies. By following these steps, you can create a customized Nerf gun that is sure to impress your friends.

Remember to take your time and use caution when handling the Nerf gun mechanism. Happy building!


Yes, as long as the Nerf gun mechanism is properly secured and the rubber bands are not too strong.

Yes, you can add different features to your Lego Nerf gun, such as a magazine or a laser sight.

It may require some skill and patience, but with the right materials and instructions, anyone can build their own Lego Nerf gun.

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