Nerf Gun Modifications.




About: Computer Engineering Student at Drexel University, Intern at NextFab Studio.

Nerf guns are not just for kids any more. In this how-to, you will learn how to make home made darts, modfy your nerf gun, and convert a watergun to shoot nerf darts. Mod a few guns, call up the friends, and shoot each other like your 10 again!

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Step 1: Making Darts

This is the simple really. Materials are more the issue. You will need:

-Foam Backer Rod. Its found in a hardware store. It looks like the above. A big coil of foam. Try get 1/2"

- Fishing Weights. Ofcourse BB's, old nuts, anything that is small and has some weight to it will work.

-A glue gun and glue.

First, take the FBR and cut a small piece off. Use the glue gun to bore a hole in it. Now that you have a hole, drop your weight in it. Now alll you have to do is cover the hole with hot glue. Don't be afraid to lick your fingers and push the glue down for a better fit.

Repeat this for a good 50 darts and your in business.

Step 2: Modifing the Dart Gun.

Now, just as easy. Concept is, replace the stock barrel(s) with a new tighter fitting barrel. Here is a list of type of barrels...

-1/2" CPVC (Yes, CPVC.)
-1/2" K&G Brass Barrel (The best of the best. Found in hobbie shops. They are used for making train tracks.)
1/2' Brass

I reccomend CPVC. Its easy to find and worksa great. But, if you know of a hobbie shop, get the brass, its amazing.

Now, its simple. Find the barrel(s) that the air comes out of, and get rid of it. Replace it with CPVC or Brass. Remeber, the shorter the barrel, the moer stable it will be, but you may loose some distance. The longer it is, the less stable, etc.

Take a look at the pictures for an example that I did. That gun is called the Night Finder and is 5 bucks in stores. Shoots a decent 50 feet.

Step 3: Converting Water Guns to Nerf.

This is SIMPLE. Just strap on a barrel to where the water flows from. This is probably the easiest thing to do, and the most effective.

My water guns shoots a good 150' feet. Its absoultly scary to be honest. These aren't your old nerf gun, this thing will hurt. Alot.

Step 4: Playing With Friends.

Now, modifing the guns is the boring part. Playing is the fun part. Call up your friends and tell them your gonna play nerf. Toss them one of your guns, or just play tag if you only have one gun. Get them intrested. If they like it, tell them to go buy one and mod it.

Just keep doing it until you have like 15 people to play with. Worked for me, until everyone got bored, but theres always someone else willing to play.

When you do play, wear some eye protection. Sure sounds stupid now, but wait til you see the guns shoot.

Step 5: Learning More.

There is a large community of nerf modifiers. If your intrested in learning more, check out Nerf Haven. - They have lots of modification how to's that are more detailed then mine, and even a home made section.

I take no credit for what I made, I'm no innovator, its all the people at NerfHaven, and other fourms like it.

Have fun!

1 Person Made This Project!


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299 Discussions


4 years ago on Introduction

how doews th ewater gun work?

so confusing but the dart thing is smart


11 years ago on Step 4

why just hand them a modded gun? give them a regular gun and keep your modded one (especially if it doesn't look modded, like mine).

6 replies

Reply 11 years ago on Step 4

Plus, that way, they will be tempted to mod on their own.


Reply 11 years ago on Step 4

or, take a pen, take everything off it except the end cap, cut it so that the end cap makes it a smaller opening on one end, wrap it in tape so it fits snugly in the barrel, and put it in your pocket. then, halfway through the nerf fight, just whip out the extension, put it in the gun, and start firing airsoft bbs.


Reply 10 years ago on Step 4

and they hurt, too..... I lost my nerf gun and broke the other one, though. sadness.


9 years ago on Step 4

another way to get some extra kick, stretch the spring that forces the piston into the barrel or replace with a stronger spring. also by using the "buzzbee toys" darts (cheaper brand) they are slightly bigger and harder darts, force them into the barrel, cock the gun pull the trigger. the dart wont come out but a nice whack on the cocking mech and these darts hurt. i got hit in the mouth and had my gums split

2 replies

Reply 8 years ago on Step 4

Sorry, but stretching the spring just weakens it.


7 years ago on Introduction

you could also just cut the top off of a nerf bullet.....


8 years ago on Introduction

1/2 inch is too small for mine and 5/8 is too big. I've wrapped the ends of the 1/2 inch with a cloth tape, one time around, and it works but I have to find a good balance now maybe make the tips heavier because now they warble in flight.