Introduction: Extreme Builder's 12 Shot Knex Gun

Picture of Extreme Builder's 12 Shot Knex Gun
hey everyone this is my new knex gun. it doesn't look like much but i have been working on this gun for about 4 months now perfecting it and working out the bugs. its a great sturdy gun with good power about 50 feet. it uses the same rail design as The Jamalam but i still came up with it it just happens we used the same thing. it has never jammed for me but sometimes it does shoot two at once. it feels great in ur hands i like the look of it. anyways enough said why don't you guys give it a shot

sorry its alittle dark

hey everyone,
check out my youtube page

Step 1: Handle

Picture of Handle

same handle as my other guns i like it alot

Step 2: Magazine

Picture of Magazine

this is my favorite thing about the gun this is the best mag i have ever used or seen black y connectors at the bottom so rods can't fall out and not ram needed!! =]

Step 3: Trigger

Picture of Trigger

good trigger sorry about that blue piece some people might not have it so u could probably use a different piece

Step 4: Stock/butt

Picture of Stock/butt

now i like this stock idk i like the look and feel of it alot and it supports the ram as a rail and the end of the stock moves alittle to form more to ur shoulder

Step 5: Barrel

Picture of Barrel

pretty simple but works great

Step 6: Top

Picture of Top


Step 7: End Barrel/mag

Picture of End Barrel/mag

now this is the most important part of the gun this is where the blur rod is stopped so the ram could hit

Step 8: Body/frame of the Gun

Picture of Body/frame of the Gun

not to hard i think u guys will know whats going on

Step 9: Ram

Picture of Ram

if u are lost on this then u should not be building knex lol

Step 10: Put It All Together

Picture of Put It All Together

this might get alittle hard sorry about that but if u have any questions ill be happy to answer them

Step 11: Add the Rubberbands

Picture of Add the Rubberbands

just do exactly what the pictures show


nolengarey (author)2016-12-28

for step 3 what can you use instead of the blue piece

kelin8 (author)2011-02-20

hi it's a cool gun and I made it but when I loading it and shoot it then the blue rods stuck in the gun.
do you know a solution.
cool gun again 5 / 5

~Aeronous~ (author)2010-06-04

I was wondering who made the first internal mag pusher.

yeah. im pretty sure i was. i tried to put something innovative in everything i built

shieldsam (author)2010-10-31

no matter coz i got millions of blues

shieldsam (author)2010-10-31

"give it a shot"

har har har

killersir751 (author)2010-10-25


spijk860 (author)2010-08-11

please post a foto from how to put on the yellow connector

st j (author)2010-07-25

hmmm.... very cool handel

st j (author)2010-07-24

what do u do here. :)

knexsniper123 (author)2010-07-22

this gun sucks its so hard to connect dont build it!

knexsniper123 (author)2010-07-22

how do u connect it to yellow which way plz reply

yingyangcuzins (author)2010-06-24

um.... how does i does thate step? lol

yingyangcuzins (author)2010-06-24

seroius does it hav 2 be cut off

twobytwo (author)2010-06-13

i built mine just like i was supposed to but the only broblem is that the blue rods in the mag bunch up from the magazine and it doesnt shoot. I kinda fixed that but thenthe rubber band pushes the first rod one space too high and it doesn't shoot. Could u help me plz.

poo2thegeek (author)2010-06-01

looks good....

part list please????

An Villain (author)2010-04-06

pull back... thing.

reeseboy109 (author)2010-02-23

nevermind. i found out how it all works hahahaha

reeseboy109 (author)2010-02-23

how long does the ram have to be?

knexsniper1 (author)2009-04-04

you don't have grey rods? What pieces DO you have?

i guess red rods and just make it shorter

that might work

numm numm (author)knexsniper12009-12-05

 if you just have one or two grey ones you can use 2 yellow rods and a orange connector to substitute...

knexguns30001 (author)2009-11-19

mine shoots 2 round a time is sucks it dosent load right do u know what to do??????????

Lowney (author)2009-09-16

Does that orange connector have to be cut or is that just the way yours is?

GeekBeam (author)Lowney2009-10-24

probably not

GeekBeam (author)Lowney2009-10-24

i need to know that so i can mod the full auto knex gun to shoot rods with this magazine

knex gunner101 (author)2009-10-09

looks cool but is a pain is @#$%&* @$$ my th assamble step my descriptive plz

mailotje (author)2009-10-05

if you dont have enough small black pieces, is there might me a nother way to build it

devon34 (author)2009-09-24

why string is it needed

james4 (author)2009-09-24

you rock dude

ol987986 (author)2009-09-01

who has this many Y connectors?????

NYPA (author)ol9879862009-09-02

i got 60.

ol987986 (author)NYPA2009-09-12

well gd 4 u anyway i made this gun in da end haveeing to sub some pieces but i did it.

_kira_ (author)2009-09-07

the mags awesome this design puts less pressure on the rods and stops jamming i love the mag.

dannyeah (author)2009-09-03

how work the trigger couse i would like to build a diferent gun but i need the instruction how it wurks

dannyeah (author)2009-09-03

is it powerfull

ol987986 (author)2009-09-01

it is the only true trigger, well working gun on this site 9 out of ten cos the mag is confusin.

lugnut1996 (author)2009-07-22

i have a problem it keeps shooting two at a time can u guys help me

Sandy44444 (author)lugnut19962009-09-01

say its a shotgun.

scaramouchew (author)2009-08-31

hey extremebuilder i have two problems first 1 i already posted second at step 9 im out of long rods what to do

scaramouchew (author)2009-08-31

how to connect the thing u made in first picture at yellow connector

aaisthestig (author)2009-08-23

do you think you cold put a bigger magazine on it?

ithaley (author)2009-08-19

this is an awesome gun! do you think you can make more with mags and stuff that take less peices im only like 10 peices away from making this so i changed it slightly but anyways great gun

kray5729 (author)2009-04-30

is the end sharpened

Blackbird17 (author)kray57292009-07-12

maybe it is. it is hard to tell

yes it is


zapple (author)kray57292009-04-30


knexboy09 (author)2009-07-27

is there a rubber band around the orangge bits

About This Instructable




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