DIY Airsoft Shotgun: The Ultimate Guide to Building Your Own

If you’re an avid airsoft player, you know that having the right equipment can make all the difference in your game. One piece of equipment that can be particularly useful is an airsoft shotgun. Not only is it a powerful weapon, but it can also be a lot of fun to use.

While you can purchase an airsoft shotgun from a store, making your own can be a rewarding and cost-effective alternative. You can create a shotgun tailored to your specific needs and preferences with just a few basic materials and patience.

Whether you’re looking to improve your accuracy or just want to try something new, building your airsoft shotgun can be a great way to enhance your airsoft experience.

Understanding Airsoft Shotguns

Types of Airsoft Shotguns

There are three primary airsoft shotguns: 

  • Spring
  • Gas
  • Electric

Spring-powered shotguns are the most basic and affordable option, but they require manual cocking before each shot.

Gas-powered shotguns use compressed gas to propel the BBs and offer a more realistic shooting experience, but they can be more expensive and require additional maintenance.

Electric-powered shotguns are the most popular option and use a rechargeable battery to power the gun’s motor, allowing for semi-automatic or fully automatic firing.

Components of an Airsoft Shotgun

Regardless of the type of airsoft shotgun you choose, they all have the same basic components. The barrel is where the BBs are fired from and can vary in length and diameter.

The hop-up unit applies backspin to the BBs, improving their accuracy and range. The magazine holds the BBs and can be detachable or integrated into the gun. The trigger controls the firing mechanism, and the stock provides stability and support while shooting.

When building your airsoft shotgun, it’s essential to consider the quality of the components you choose. Upgrading to higher-quality barrels, hop-up units, and magazines can significantly improve the performance of your gun.

Understanding the types and components of airsoft shotguns is crucial when building your own. Choose the type that best fits your needs and budget, and invest in high-quality components for optimal performance.

Building an Airsoft Shotgun

Step 1: Choosing the Right Parts

When building an airsoft shotgun, choosing the right parts is essential.

You’ll need a reliable magazine, such as one from Maruzen. You’ll also need a lower receiver compatible with your other parts. Choose accessories that fit your needs, such as a sling or flashlight.

Step 2: Assembling the Lower Receiver

To assemble the lower receiver:

  1. Attach the trigger guard and magazine catch.
  2. Insert the trigger assembly and hammer into the receiver.
  3. Attach the stock and grip to the lower receiver.

Step 3: Installing the Magazine Tube

Installing the magazine tube is a simple process. Slide the tube into the receiver and secure it with the retaining nut. Then, attach the magazine cap to the end of the tube.

Step 4: Installing the Pump and Barrel

Attach the pump to the action bar to install the pump and barrel. Then, slide the barrel into the receiver and secure it with the barrel nut. Finally, attach the pump to the forend and secure it with the forend nut.

Step 5: Adding Accessories

Adding accessories can enhance the functionality and appearance of your airsoft shotgun. Consider adding a sling for easy carrying, a flashlight for better visibility, or a red dot sight for improved accuracy. Make sure to choose accessories compatible with your shotgun and fit your needs.

You can build a reliable and functional airsoft shotgun by following these steps. Remember to choose the right parts, correctly assemble the lower receiver, install the magazine tube, pump, and barrel, and add any necessary accessories.

Tuning Your Airsoft Shotgun

Adjusting the FPS

Adjusting the FPS of your airsoft shotgun is a crucial step in tuning it. This can be done by changing the spring or the piston head. If you want to increase the FPS, you should replace the spring with a stronger one.

Conversely, if you want to decrease the FPS, you should replace the spring with a weaker one. However, it’s essential to keep in mind that changing the spring can also affect the accuracy of your shotgun, so you should test it after making any changes.

Fine-Tuning the Hop-Up

Fine-tuning the hop-up is another essential step in tuning your airsoft shotgun. The hop-up imparts a backspin on the BB, enhancing its range and accuracy during travel. To fine-tune the hop-up, you should adjust the hop-up unit using the adjustment wheel.

Turning the wheel clockwise will increase the hop-up, while turning it counterclockwise will decrease it. Testing your shotgun after making changes ensures the hop-up is set correctly.

Other Considerations

When tuning your airsoft shotgun, it’s important to consider other factors that can affect its performance. For example, the weight and quality of the BBs you use can impact the accuracy and range of your shotgun.

The type of gas you use (if your shotgun is gas-powered) can also affect its FPS and overall performance. Experimenting with different BBs and gas types is vital to find what works best for your specific shotgun.

Tuning your airsoft shotgun is vital in ensuring it performs to the best of its ability. By adjusting the FPS and fine-tuning the hop-up, you can improve the accuracy and range of your shotgun. Factors such as BB weight and gas type can also help optimize your shotgun’s performance.

Safety and Maintenance

Proper Handling and Storage

When it comes to airsoft shotguns, safety should always be your top priority. Treat your airsoft shotgun as if it were a real firearm. Here are a few tips to ensure safe handling and storage:

  • Keep your airsoft shotgun pointed in a safe direction.
  • Never point your airsoft shotgun at anyone, even if it’s not loaded.
  • Ensure that your finger remains away from the trigger until you are prepared to discharge a shot.
  • Store your airsoft shotgun securely, away from children and unauthorized users.
  • Keep your airsoft shotgun unloaded when not in use.

Cleaning and Lubrication

Proper maintenance is essential for the longevity and performance of your airsoft shotgun. Here are a few tips for cleaning and lubricating your airsoft shotgun:

  • Use a soft, dry cloth to wipe down the exterior of your airsoft shotgun after each use.
  • Use a cleaning rod and patches to clean the barrel of your airsoft shotgun.
  • Use a silicone-based lubricant to lubricate the moving parts of your airsoft shotgun.
  • Avoid harsh chemicals or solvents, which can damage your airsoft shotgun’s finish and internal components.

By following these simple tips for proper handling, storage, cleaning, and lubrication, you can ensure your airsoft shotgun’s safe and reliable operation for years.


Now you have successfully made your very own airsoft shotgun. With just a few simple steps and some basic materials, you can create a powerful and reliable weapon to give you an edge in any airsoft battle.

Safety should always be your top priority when handling airsoft guns. To prevent injuries, wearing protective gear and adhering to all safety guidelines is crucial. Also, check your local laws and regulations regarding airsoft guns before using them.

By making your airsoft shotgun, you have the freedom to customize your weapon to your specific needs and preferences. You can easily modify your shotgun to suit your style, whether you want a shorter or longer barrel, a different trigger mechanism, or a fantastic paint job.

Overall, creating your airsoft shotgun is a fun and rewarding experience that allows you to immerse yourself in the airsoft world fully. With your new weapon, you’ll be ready to take on any opponent and come out on top.

Frequently Asked Questions

Q. What materials do I need to make an airsoft shotgun?

To create an airsoft shotgun, gather the following materials: PVC pipe, springs, screws, nails, a drill, a saw, a hot glue gun, and airsoft pellets.

The PVC pipe forms the shotgun’s main structure, providing durability and flexibility. Springs are vital for proper firing and reloading mechanisms. Securely fasten components with screws and nails, ensuring structural integrity.

Work with a drill to create holes and modify the PVC pipe. A saw helps in cutting the pipe to desired length and shape. The hot glue gun ensures strong attachment and reinforced joints. Finally, stock up on airsoft pellets.

Q. How much will it cost to make an airsoft shotgun?

The cost of making an airsoft shotgun will depend on the quality of materials you choose to use. On average, you can expect to spend around $50 to $100 on materials.

Q. How long does it take to make an airsoft shotgun?

The time it takes to make an airsoft shotgun will depend on your level of experience with DIY projects. On average, it can take anywhere from a few hours to a full day to complete.

Q. Is it legal to make your airsoft shotgun?

In most cases, making your own airsoft shotgun is legal as long as you follow local laws and regulations. Be sure to check with your local authorities before starting your project.

Q. Can I modify an existing airsoft gun to make a shotgun?

While it is possible to modify an existing airsoft gun to make a shotgun, it is not recommended. This can be dangerous and may result in injury or damage to your gun.

Q. How can I make sure my airsoft shotgun is safe to use?

To ensure your airsoft shotgun is safe, follow all instructions carefully and use high-quality materials. Additionally, always wear protective gear when using your gun, and never point it at anyone.

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