Introduction: Nerf Gun Modification

Picture of Nerf Gun Modification

In this instuctable, you will make a nerf gun mod for the NERF N-STRIKE LONGSHOT CS-6 nerf gun. It will pretty much make it shoot alot faster and farther. Its my first instructable, so bear with me. And sorry, I made the gun and then realized i should have taken pictures of the steps. The pictures will not match up with the steps, they are just there for visual effects.

Step 1: You Will Need...

Picture of You Will Need...

1- 2" PVC Pipeing-9 inches
1- 2" PVC End Cap
1- 2" PVC Coupling
1- 2" by 1/2" PVC Bushing(half inch is to be threaded)
1- 3/8" Ball Valve
2- 3/8" Close Nipples(what it says on the receipt)
1- 1/2" by 3/8" Brass Pipe Bushing
1- 3/8" by 3/8" Tube to pipe converter
1- 3/8" Braded PVC Tubing( 12 inches)
PVC Cement
Teflon Tape
Strong tape( i used duct tape)
Bike pump or air compressor

Look at the pic on the previous page to see a picture of all ingredients.

Step 2: Assemble Brass Pieces

Picture of Assemble Brass Pieces

Piece together to brass pieces. Use the teflon tape for sealent. This is where the wrenches come in handy. You can look at the picture for help on the first page.

3/8" by 3/8" pipe to tube converter will screw onto the male end of the close nipple converter.On the other end of the close nipple converter, screw on the valve.Add the other close nipple converter on the second end of the valve. Now add the 3/8" to 1/2"piping converter on the close nipple converter. You are done with the brass.

Step 3: Add Tubeless Tire Valve

Picture of Add Tubeless Tire Valve

Drill a hole in the 2" PVC end cap. This hole should be the same size as the diameter of the tire valve. Stick the valve in the inside of the End cap so it sticks out. Make sure you cannot push the valve in or out.It should be stationary and not movable.

Step 4: Assemble PVC

Picture of Assemble PVC

Using the PVC cement, push together the 2" to 1/2" PVC bushing and the 2"PVC coupling. On the other end of the coupling, push on the 9" Piece of 2" PVC pipeing. To the other end of that, add the end cap with the tire valve in it. Make it as air tight as possible.

Step 5: Assemble Everything

Picture of Assemble Everything

Screw the 3/8" to 1/2" pipeing converter into the threaded hole of the PVC bushing, use teflon tape to seal it up. Push the piece of PVC tubing onto the 3/8" by 3/8" tube to pipe converter. Let it dry over night

Step 6: Fire!!

Picture of Fire!!

Feed the PVC tubing into the back hole of the gun(only about an inch or so). You can duct tape it to the gun if you'd like(thats what i did). Make sure the valve is closed and use a bike pump or air compressor to pump up the chamber. I forgot to add a gauge to see how much air is in it. Pump it up to what you think is right. Im not reasponsable if you blow it up. It should be no more than about 20psi. Load a foam dart in the end of the barrel and make sure it slides down to touch the end of your PVC tubing. Simply Turn the valve( faster the better) and Swoosh, the dart will go flying. I shot about 30 yards with it. Tell me how far yours will go. And please, dont use a projectile that could hurt someone, stick with the foam darts. They are still very much fun. Thanks.


will7917hero (author)2011-10-28

I've seen Nerf guns better than that,DUDE

Maybe but if you work on it more u can get 60-100

DSJesterXII (author)2013-05-27

Ohdamn. Put big bore hunting pellet in that damn thing.

jumpingcat (author)2011-08-01

Muhahahahaha!!!! I smell waffles

sirodim90 (author)2011-03-19

Isn't this too complicated to be nerf?

Spiderdog3000 (author)2009-07-14

Approximately how much does all this cost?

over 9000 pounds!


i do belive you are not familiar with the meme. then again there are-- OVER 9000!!

finmonster (author)meat grinder2010-04-19


zack247 (author)2010-12-10

maybe a valve like those used in compressiion guage will work? it is just a button and when you press it the air is all let out instantly.
i will try this with my now broken nerf gun.

Karim (author)2007-03-10

That's sweet i'll if you want to make the gun more fun, stick a needle or nail through the back of the dart and push it through until it comes through the top of the dart, and then you have a hunting dart!!! I did it to my n-strike nite finder

Morriscow (author)Karim2010-06-03

 i did that to my longshot
it takes a while to figure out the perfect length though

(Ubuntu does too)

Spiderdog3000 (author)2009-07-09

Also, if one is going to use this on the field, then it seems like a bit of an unwieldy process to pump it up with a bike pump or an air compressor. Is there a way to tape the bike pump onto the gun as well? Would that work?

zack247 (author)Spiderdog30002010-05-30

perhaps interchangable air chambers?

you could have a small compressor, like one small enough to fit into a back pack, and have it connected to the fill valve. if the compressor has a lock on the head, then your good. simply use a smaller section of pvc pipe, so that your pressure builds quicker, then you essentially have an unlimited amount of air, pressure, and power! (without the pain of carrying the compressor by hand.

Spiderdog3000 (author)2009-07-16

Does it have to be 3/8" can it be 1/2"?

yes, actually, it does to fit inside the barrel. the othe way around would fit outside the barrel.

If it's outside the barrel, does that make it better?

no. in fact, that makes it worse because there will always be some air that leaks on a pipe that fits around the other one if said pipe is the source, while if said pipe is the destination it doesn't lower the pressure at all.

Well it's a good thing I didn't do that.

yep. anyway, gotta get back to work on my railgun minigun.

imthatguy1125 (author)2009-07-10

why even use a a nerf gun

"brings out modded vulcan*

i mean just use a pvc barrel instead of the nerf gun shell better range

not necessarily. some people replace the barrel with a PVC pipe; some choose brass, and some, like me, just plug thew bleeder holes with epoxy.

modmaster (author)2009-07-25

SORRY GUYS I HAVENT BEEN ON INSTRUCBLES FOR A WHILE haha..spiderdog, teflon or the liquid sealant you can buy at any hardware store. also it can be any side pcv you want and it only cost me about $15 at home depot, but i had some of the parts already..also add the gauge on the end of the pcv cap with the bike valve..and yes, PLEASE use eye protection..MYBUSTERS FOR LIFE

Spiderdog3000 (author)modmaster2009-08-10

Thanks! I successfully made the mod and it works REALLY WELL.

Spiderdog3000 (author)2009-07-16

What should I use to seal this part? More teflon tape?

Spiderdog3000 (author)2009-07-09

Where would you put the gauge if you added one?

qon duixote (author)2008-12-22

just a reminder because I didn't see it on here, PLEASE use pressure rated pipe it's usually white with blue letters providing the rating, the gray stuff called conduit or drainage pipe isn't built to hold pressure, it'd probably hold the 20 psi but it's not worth the 20 cents you'd be saving. Make sure you pressure test the system before you go lining up the sights with the pressurized tubing next to your face. By the way Eye Protection is cool, just like on Mythbusters

Gamer917 (author)qon duixote2009-04-08

yay another mythbusters fan!

data23 (author)Gamer9172009-05-17

if ur on instructables, chances r. . . ur a mythbusters fan!

xXxSubZero117 (author)data232009-05-30

And if you use texts like ur r lik Chances are you either use Myspace of text on a phone! Mythbusters is awesome!

Speedmite (author)2009-04-07

It was just an approximation. And if you made your own darts you could make them 1/2 inch. Or you could sand the inside a lot to make it bigger.

burgleflickle (author)2009-04-05

I like it, but you can get more range with the sniper pistol. Maybe replacing the pvc with a soda bottle for higher psi, and some barrel modifications.

QuiksilverRox (author)2009-04-02

I made something like this but only out of PVC and those darts leave huge bruises. I usualy pump it to 150psi.

Speedmite (author)2009-04-02

So basically a potato cannon cross bred with nerf? Well in that case all I need is a smaller barrel to put on instead of the potato one. 60psi in a 1/2inch tube here I come! This should go farther than potatoes! OH! And them screamer darts would be awsome!!!!

tony stark (author)2008-05-27

Pancakes is rite. On every Nerf gun it says do not mod. You could mod it but not major ones like this.

dsman195276 (author)tony stark2008-06-09

dude, it shoots foam darts!

Wafflicious (author)dsman1952762009-02-15

hahahah burn.

oh1134 (author)tony stark2008-08-27

It is a foam dart. plus, stock guns SUCK.

finnster (author)tony stark2008-06-16

Who follows instructions and rules? ANARCHY!

Phantom5582 (author)2008-08-05

I'm so going to do this, but I'm going to take apart a paintball gun for some parts. I want to build it into my Nerf maverick in a way where I can still use it the way it was, but I don't have to cock the piston back between shots. If I can get the slide to slam back with each shot, that would be cool as well. I think the only part of this I'm going to use is the air tank. I'm going to build two, one to pressure test and the other for the gun itself.

CapnTac (author)Phantom55822008-09-20

You mean something like this?:
(3rd picture down)

Phantom5582 (author)CapnTac2008-09-20

Wow... That is good. That is almost what I want, but it looks like it would be the best I'll get. The only thing that is different from what I want is that I wanted the hose to exit From the base of the gun.

DeathByPancakes (author)2008-05-04

Two things: 1) If it shot faster, wouldn't it, like, take out someone's eye easier than usual? 2) I think there's a sticker that tells you NOT to do that...

It could possibly hurt someone, this is why you must be extra careful. Never aim at anyone! And thats why i took the sticker off :)

panzerunit5 (author)modmaster2008-08-05


fork me3 (author)DeathByPancakes2008-07-28

dude soon you will have to change your name from DeathByPancakes to DeathByNerf

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