Introduction: Knex Pistol Cannon

Picture of Knex Pistol Cannon

This is my handheld knex cannon. It Shoots around 60-70 feet and uses minimal pieces.

Step 1: Piece List

Green 13
White 41
Blue 12
Yellow 3

Yellow 5
Green 7
Gray 7
Light gray 2
Orange 2
Tan clip 2
Blue 3D 20
Silver / Purple 3D 12
Silver 6
Blue 6

Total: 138

Step 2: The Barrel

Picture of The Barrel

1. Build these
2.Build this
3. Put them on
4. Make this
5. Another view

Step 3: Trigger Mechanism

Picture of Trigger Mechanism

1. Make this
2. Make these
4. Make
5. Attach
6. Make
7. Attach

Step 4: The Handle

Picture of The Handle

1. Make this
2.Make this
3. Put them together
4.Make this
7. Oops
8. Put Together

Step 5: Assembly

Picture of Assembly

Put the gun together!!

1.take these two pieces
2. Connect them
3.Add Blue rods
4. Attach Handle
5. Attached handle
6. Completed gun!!!!!!!!!!!!!!!!!!!

Step 6: Grab Rod & Ammo

Picture of Grab Rod & Ammo

1.Grab rod
2. Ammo

Step 7: Rubberbands, Loading, and Fireing

Picture of Rubberbands, Loading, and Fireing

1. Take off the orange connectors & the white rods
2.Put rubberbands on
3.Put a rubberband on the trigger
4. Pull the rubberband back with the grab rod
5. The loaded gun
6. With wheel ammo
7. With gear ammo
8 With white connector ammo
Enjoy the gun

Please rate

Please comment

Please tell me about any ammo that works well.


Moo gun po (author)2009-06-23

This gun is crazy!!! I shot my brother and he cried

Gun Dude (author)Moo gun po2009-06-23

That's not very nice!!! :)

mettaurlover (author)Gun Dude2009-10-18

sometimes siblings deserve it. such as my sister, who i will never let near my knex weapons again after what happened last time :0

wout147 (author)mettaurlover2011-11-17

i love this gun i use it against my 2 brothers and they never annoy me anymore

mettaurlover (author)wout1472011-11-17

You. Necro. BAD.

skyfaller (author)2011-03-24

it seems like it uses alot less pieces than you said.

iownu136 (author)2010-06-20

moo gun po your funny lols

sukinmaru (author)2009-11-10

how do you put the ammo in?

sukinmaru (author)sukinmaru2009-11-10

Nevermind, i figured it out. This gun is A M A Z I N G!! Great work, I love that someone made a great gun that uses minimal parts and is very powerful.

Kudos, 5/5 i say!!

Gun Dude (author)sukinmaru2010-01-28


snakey782 (author)2010-01-17

i cant really load it. how do u do that.

snakey782 (author)2010-01-17

Mine only shoots about 1 foot. Can you give any suggestions?

knexsuperbuilderfreak (author)2009-07-10

hmmmm idk if what bart boy said is ture then wow this should have low friction

Bartboy (author)2009-06-24

I doubt the range, but will build and rate. I hope it works! Looks cool....

Gun Dude (author)Bartboy2009-06-25

It will go that far with enough rubber bands

Bartboy (author)Gun Dude2009-06-25

Nope.... with 4 #64s it shot about 20 ft....

Gun Dude (author)Bartboy2009-06-27

Really??!! I got it to shoot alot farther than that.

cowy man dude (author)Gun Dude2009-06-27

Mine shot about 50 ft

Funny Gun (author)2009-06-23

Wow great gun

Gun Dude (author)Funny Gun2009-06-23


Gun Dude (author)2009-06-23

Yay I'm done!!!!

About This Instructable




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