Extreme Builder's Knex Sidearm

hey everyone its me again and this is my new and updated knex sidearm. Its a brand new design and works great. I like the handle more then any other knex gun handle iv felt. Anyways its a great gun with good power 30 feet average and up to around 50 feet. It has a 5 shot mag and has never jammed. Dont be afraid to put ALOT of rubber bands on the pusher. I'll stop talking and you guys start building.

new design
good power
easy to use
mag never jams
slot in the handle for mag pusher
strong frame so load up those rubber bands

complicating for a hand gun
uses a good amount of pieces
uses some of the rarer pieces
trigger isnt far back so reduces power

please rate and comment

hey everyone,
check out my youtube page

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Step 1: Handle

here it is

Step 2: Body

easy enough

Step 3: Mag Part

almost done

Step 4: Trigger

very easy

Step 5: Ram

soo close

Step 6: Adding Little Stuff

two more steps

Step 7: Add Rubber Bands

last one

Be the First to Share


    • CNC Contest

      CNC Contest
    • Teacher Contest

      Teacher Contest
    • Maps Challenge

      Maps Challenge

    247 Discussions


    6 years ago

    It looks great!


    6 years ago on Introduction

    I made this gun, and it's ok. The only problem I have with it, is that when I use the mag, (shooting grey clips) the ram shoots the front wall of the mag (the orange connector, green rod, and ball socket) with the grey clip. So I don't use the mag. Instead, I put a blue rod in the barrel and shoot that, and it works just as fine. Overall, this gun is awesome, because of how powerful it is.

    1 reply

    Alright, I found a fix so I actually can use the mag. I switched the front ball socket with a blue clip, so there is a little more space for the grey connector. Now I can use it the right way! XD


    7 years ago on Step 4

    i cant get it on the trigger i mean


    8 years ago on Step 2

    do you need the bendy bits?


    8 years ago on Introduction

    Wow i love this gun :D fires brilliantly and i love the mini-recoil 5*

    terminator 1.0

    9 years ago on Step 7

    wow!!! works great i just about to have a war bets i gonna win with this