Introduction: K'nex Gun

Picture of K'nex Gun

This is my first instructable, it's not that great, but I tried my best. I've been working on it for about a week now. It has two different firing modes, but three ways to load it, and I'm working on a fourth where a magazine that feeds the ammo into the gun attaches to the barrel (and is detachable). If any one can help me with the design to make it better, please leave me a comment.

Step 1: Build Main Parts

Picture of Build Main Parts

this is the barrel

Step 2: Build Parts

Picture of Build Parts

build parts

Step 3: Assemble Parts

Picture of Assemble Parts

this is where you will assemble the previous parts

Step 4: Make the Trigger and Handle

Picture of Make the Trigger and Handle

here we'll construct the trigger and handle

Step 5: Add These Parts

Picture of Add These Parts

self explanetory

Step 6: Extras

Picture of Extras

make the big rubber band mount.

Step 7: Reloading

Picture of Reloading

there are three ways to reload the gun

1. slide it down the barrel. this is not recommended, because the ammo might slide all the way through(see picture).

2. open the barrel and slide in the ammo(see picture).

3. fill the barrel with four shots and shoot 4 times(see picture).


Knex Lego Maniac (author)2007-03-24


FAIL 1 year,8 months,15 days later no magnum from you

Bartboy (author)King_Banana2009-03-08

make that 2!

DJ Radio (author)Bartboy2010-06-03

Now it's 3.

Lowney (author)Bartboy2009-07-03

This has happened once more with the SRv2. It's not looking good for the BR18 or the BRv1 either

DJ Radio (author)Lowney2009-08-01

Killerk said he wouldnt post the battle rifles.

Lowney (author)DJ Radio2009-08-01


Wafflicious (author)King_Banana2008-12-22

u seem to be staking killerk..... every advertising comment ive seen from him has u as a reply .... that = MORE of a fail

KnexFreek (author)Wafflicious2009-09-11

uhm i think lowney actually knows killerk not positive but i think so lowney can tell me if im wrong

Lowney (author)KnexFreek2009-10-08

 I don't know KillerK. He lives in a different country to me.

KnexFreek (author)Lowney2009-10-08

 oh whatev
i made that comment a long time ago

Lowney (author)KnexFreek2009-10-08

But it still had meaning ; )

KnexFreek (author)Lowney2009-10-09


King_Banana (author)Wafflicious2008-12-22

your spelling=FAIL

Wafflicious (author)King_Banana2008-12-23

good comeback......almost

lol 8 days until 3 years.

it's been more than a year now


An Villain (author)2010-05-01

I LOVE this thing! 5*

The Jamalam (author)2010-02-28

You've come a long way.

KnexFreek (author)2009-11-16



sikufan (author)2009-09-21

it´s a very simple gun with a very creative trigger !!!!!!GREAT!!!!!

knexsniper1 (author)2009-06-19

nice gun!

Miles Tails Prower (author)2008-12-25

Wow. Your VERY FIRST gun. It is actually good even now.

I_am_Canadian (author)2008-12-09

LoL. You have come a very long way...

Mepain (author)I_am_Canadian2008-12-09

Oddly, this gun is still my favorite gun.

I_am_Canadian (author)Mepain2008-12-09

Reason being...?

Mepain (author)I_am_Canadian2008-12-09

I really don't know, it's the only gun that I've built more than once. I think I built it like 4 or 5 times actually.

pls (author)I_am_Canadian2008-12-09

agreed :D

disco diva (author)2006-12-14

can you make an easyer gun

try building this one its simple powerful accurate reliable easy to use shoots 200ft+ w/ sniper rod (see step 18) ok enough bragging just check it out and due c step 18 there is a vid of the gun shooting 200ft

shazbob (author)Knex Lego Maniac2008-11-02

Do u think u could post a vid that proves the SR-V1 can shoot 300ft because i think it mentions it in the vid. P.S Cool vid though

I saw that video it was awesome


no problem

o ya keyword K'NEX GUN by KILLERK sry im advertising again mepain

Mepain (author)Knex Lego Maniac2006-12-15

its fine w/me

Mepain (author)disco diva2006-12-17

check out my other instructable, it's easier.

crestind (author)disco diva2006-12-14

Not a single K'nex model on this entire site is difficult to build. It seems some people just look at the picture and think "too difficult." If you're having trouble, practice building the basic models in the K'nex sets first before attempting more complex designs.

disco diva (author)crestind2006-12-14

are you still there

crestind (author)disco diva2006-12-14


disco diva (author)crestind2006-12-15

your scarey (is that how you spell scarey)

faust, would you say you are an advanced builder???

too right man!!!!!!

shazbob (author)2008-11-02

Do u no how far it shoots?

T.E.A. (author)2008-08-01

i made a stock for it i will take a pic of it and ill get it on here when i can and if anyone needs the instructions for it just tell me

T.E.A. (author)2008-08-01

very good gun i liked it a lot i didnt have a broccoli rubberband so i used a big rubberband that you can buy at Staples works just as good all i want to mod on it is a stock and i wish there was a way to make my firing pin stronger because i dont have any black rods

Pepsiman (author)2007-02-19
invalid movie: garfield2

builder968 (author)Pepsiman2008-07-28

wtf dude

Mepain (author)Pepsiman2007-02-19


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