Introduction: Knex Grenade

Picture of Knex Grenade

This is my knex grenade its blast radius is 15ft.It requires a coil spring.It use minimal pieces.

Step 1: Pieces

Picture of Pieces

Make these

Step 2: Putting Together

Picture of Putting Together

Put it together

Step 3: Carnage

Picture of Carnage

This is its damage

Step 4: Finished

Picture of Finished

You are done dont forget to rate.


JonnyBoyyizBack777 (author)2013-12-22


lord voldamort (author)2008-08-26

can u use a compression spring?

Furloy (author)lord voldamort2010-07-22

nice pic btw get a spring out of a pen or mechaniclal pencil tank bunny! ATTAAAAACK!!!!!!!! ^ () () ( ><) |HHHH|==================<>= |HHHHHHHHHHHHHHH| |HHHHHHHHHHHHHHH| |HHHHHHHHHHHHHHH|

show me a pic and ill tell ya

DJ Radio (author)2008-12-10

Is that you in step 3????????????????

silentassasin21 (author)DJ Radio2008-12-10

yeah but that was me like a year ago i wear contacts and have shorter hair and i love to skateboard now before i didnt i can tray flip can you

Furloy (author)silentassasin212010-07-22

yes and switch varial heel

DJ Radio (author)silentassasin212008-12-10

er, no......I can only ollie

~Aeronous~ (author)DJ Radio2009-09-16

suck. i can do a hippy jump!

DJ Radio (author)~Aeronous~2009-09-16

meh I gave up. We don't have a proper skate park here.

~Aeronous~ (author)DJ Radio2009-09-16

i hav 56 MnM songs on my ipod.

~Aeronous~ (author)~Aeronous~2009-09-16

and i dont even have a sk8bord

yannyboy (author)silentassasin212009-01-22

or fliptrick

silentassasin21 (author)yannyboy2009-01-22

yes and yes

yannyboy (author)silentassasin212009-01-22


yannyboy (author)silentassasin212009-01-22

can u popshuvit

does it matter?he can make good knex guns thats all we need=P

rawknexstuff (author)2009-08-17

Where do you get a spring like that?

Furloy (author)rawknexstuff2010-07-22

i got mine out of a mechanical pencil i found on the floor at school

greymatter21 (author)2010-06-01

were can i get a spring like that1?????????????????????????

Hardware store.

skatejon (author)2008-09-26

hey silent. great job with this grenade. i built it right when i heard it used a spring, i dident even think about using a spring

afleticwork (author)skatejon2009-12-03

i thought of useing a spring before i saw this because i had no rubber bands and i only have mini knex so its easyer to build and the shrapnel isn't what you have to worry about its the peices of the grenade on my version because the shrapenal is in side the spring

silentassasin21 (author)skatejon2008-09-26

well thanks that means alot:)

pls (author)2009-11-29

 Dang, you do look 21.

silentassasin21 (author)pls2009-11-29

What does that mean thats my brother when this account was his him and i take similar intrests

yannyboy (author)2009-04-04

cool gtb

Guardians38 (author)2009-01-12

this grenade cant hold my spring =(

(it came from my old airsoft gun)

pls (author)2008-11-11

theres quite a few of these on here..

silentassasin21 (author)pls2008-11-12

yeah but mine was before more than half and it was a good idea at the time and the first spring grenade

pls (author)silentassasin212008-11-12


king1000 (author)2008-10-27

can you put a video on this site

silentassasin21 (author)king10002008-10-27

nope the pics show it all

lord voldamort (author)2008-09-01

does the spring push out, or in?

lord voldamort (author)2008-09-01

yeah, it works really well, because it pushes out, not in.

lord voldamort (author)2008-08-27

you know, a compression spring, like in a nerf gun?

you can try i dont know

captain dan (author)2008-08-19

cool grenade i enjoyed making it

glad you enjoyed it dont throw at anything you care for but i throw it at my sister lol

King825 (author)2008-06-21

To me, the best grenade on this site. although it requires a spring, it doesn't explode in your face unless you want it to, and grenades that do that really get on my nerves. +1.

Charles IV (author)2008-06-03

That is not a coil spring that is a extension spring.

Sypran (author)Charles IV2008-06-12

extension is the one on doors that you need to extend to get force out of, coil/compression is the kind that needs a compression to let out forces...

Charles IV (author)Sypran2008-06-13

Sorry you right.

Galilxg3 (author)2008-04-20

Pretty awesome man!

ratboy (author)Galilxg32008-06-07

cool grenade

ironman69 (author)2008-03-30

it does have a good blast radius ( its a little hard do activate it though you have to throw it HORD) +1

I_am_Canadian (author)ironman692008-05-13

HORD, eh?

ironman69 (author)I_am_Canadian2008-05-15

oops I mean HARD!!!

knexguy (author)ironman692008-05-17

You're back! Any chance of some instructables now?

ironman69 (author)knexguy2008-05-18

yes the P90 did not turn out to work that good but I have already made instructions for a pistol with removable mag and slide instructions will be up as soon as I get my computer to work my USB ports are not working

About This Instructable




Bio: i love knexing and hobbies are gas powered rc cars
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