Picture of Paintball Grenades
Re usable, cheap paintball grenades and are easy to make

Step 1: Materials

Picture of Materials
1.Sergical tubing (I got mine from a friend who was in physio tharapy and my brother got some also from a physio tharapist but im sure theirs other places to get it)

2. Coat hanger (straightened out)

3. Air soft BBs (the 6mm ones, it shouldn't matter what weight)


5.Water gun pump(out of the gun). Iv also used nerf gun peices but their harder to use.

Step 2: Tubing length

Picture of tubing length
Cut the tubing into peices that are around 10 or 11cm

Step 3: Tying the end

Picture of Tying the end
Tie a knot in one end each peice of tubing so that the one end is sealed. make sure that it is tight and close to the end.

Step 4: Make the Collar

Picture of Make the Collar
Cut a peice ooff the open end of the tubing to creat a small ring to tubing. Take this and put it over the tube near the end.

Step 5: Pin Hole

Using a pin, make a hole just above the collar for the safety pin to go in

Step 6: Getting your paint

Picture of Getting your paint
Take the paintballs and put them in water for a few minutes. After you take them out they should be soft. Cut them open with a knife of scissors and squeeze the paint into a disposable containter. Iv also heard that you can boil them. Iv never tryed it my self but it might work.

Step 7: Filling the Grenade

Picture of Filling the Grenade
Put the open end of the tube over the end of the pump as far as you can. Fill the cylinder with paint and push the paint into the granade with the plunger. If you have a pump from a water gun it should have a valve in it but if it doesnt you have to twist the neck of the grenade befor you take the plunger out to fill it again. Fill the grenade with two pumps of paint and one of water (to save paint). If it gatheres in the middle push it to the sealed end.

Step 8: Putting in BB

Picture of Putting in BB
Twist the neck of the tube just above where the paint is so that its sealed off. Pull the tube off of the pump while keeping it sealed. It should not leak. Take one BB and push it into the tube till it is just below the collar.

Step 9: The safety pin

Picture of The safety pin
This should have been made befor putting the paint in the grenade but i can figure out how to insert steps. Using plyers make a safety pin out of coat hanger. To brake the coat hanger just bend it back and forth several times fast and it'll break. If you want you can also add a ring to the pin. Once the the grenade is filled and you've put the BB in, keep it sealed and push the safety pin through the hole you made above the collar. After this you should be able to un twist the neck and your finnished.

Step 10: How to use it

Picture of How to use it
To use the grenade carefully pull out the safety pin and throw. What should happen is when the pin is in any extra pressure in the grenade pushing against the BB (like the pressure from dropping it or bumping it while running) will try to push the BB out but the pin will stop the BB. When you remove the pin, as long as your carefull the BB will stay in the neck of the grenade and the collar will help it stay there. When the grenade hits something the extra pressure will push the BB out and the paint will be sprayed every where in the area. The pressure for tube will cause the grenade to spin so the paint should sray all around. If you keep the pin and find the empty grenade you can re-fill it, put a new BB in and you can re use it. The splatter zone (area that the paint covers) varies but is usally around or over 1.5 meters. Have fun!
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mountain g14 days ago

I like it!

I am working on how to make a small paintball practice field. Need some help and it would be asome if someone is interested. Also the grenade really works and is very useful.
The Greene3 years ago
Vary nice ill stop buying the stupid tippmann, Bt Grenade crap
pretty cool , man.
djl23 years ago
it sounds sweet
acrafty6 years ago
wat type of not is good???? cause hard for me doing a simple water ballon knot
Prop (author)  acrafty6 years ago
its just a normal knot.....you tie it before theres any pressure on it so its just like tying string
Correction: It is called an overhand knot.
Rock762223 years ago
So, if I were to pull the pin and put this grenade in a rocket launcher that fires it across my yard at high velocity, will it keep from exploding until it hits it's target, or will it burst inside my launcher the moment i pull the trigger
Prop (author)  Rock762223 years ago
Good question..... no idea. All I can suggest is to try it. I think if you put lots of packing behind in it would probably work. Or you could try a modified way of pinning in and tethering the pin to the launcher. Ya do that... instead of putting a pin through the end just fold the end over and put a clip (like a nose plug type clip) on the end that will come off easy and just tether it. you dont need a lot to keep the bb from slipping.
kylekosan234 years ago
ya a vid would be nice
Prop (author)  kylekosan234 years ago
Considering I made this instructable 5 years ago..... its not gona happen. And there is a video of it going off.
pbman1234 years ago
do you have any idea what wall thickness you used or does it not matter

pbman1234 years ago
where do you get the tubing. and also could you add a video so i can see how well it works?
Prop (author)  pbman1234 years ago
Look through the comments to find where to get it and there was a video somewhere on here but I dont have one anymore if its not here anymore.... sorry.
rocketdork8 years ago
wher els can i get this toob josh
kinny drugs its colled a comdom
you could use a balloon. (the long thin kind)
Prop (author)  codongolev7 years ago
no you cant
Prop (author)  naruto the ninja135 years ago
Cus it too big around to hold a bb and doesn't have enough pressure
codongolev Prop7 years ago
ummm..... okay.
home depot or lowes
Prop (author)  ManchesterUtd.5 years ago
Iv never seen it at either

Oh, well i dont know what to say. i got mine at home depot

Prop (author)  ManchesterUtd.5 years ago
Prop (author)  rocketdork7 years ago
Iis this could work with water as well as paint?
Prop (author)  theREALcybercat4 years ago
Yep.... when I was designing this I used water to do all my tests.
Hitman2274 years ago
ritter4242 copied this instructable but they both(the grenade) are built the same. Good job!
Prop (author)  Hitman2274 years ago
Mine are still better.... Lol
Hitman227 Prop4 years ago
Yes it is. d:p
djlolypop5 years ago
i when u use it pick the stuff up and make like a good place to put it in then when u get back home make more
what does your comment mean
Prop (author)  spenfisher124 years ago
cam.dav324 years ago
Could you use a bikes inner tube for the tubing?
Prop (author)  cam.dav324 years ago
john2094 years ago
what diameter is the tubing?
Prop (author)  john2094 years ago
the answer to that is already in the comments
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