Knex Grenade

A knex Grenade that can be lobbed and detonates apon impact shooting bullets randomly in multiple diriections

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Step 1: Building the Body

Build what is shown in the picture then add the firing bar and put rubberbands on it.
Make sure you have the rubberbands in the right place so they create the tension that holds the bullets in.

Step 2: Loading and Firing

To load it first pull the firing bar back. Take the square knex pice and stick the tip of the middle red connector into the path of the firing bar, stopping it from firing.
Add 2 green pellets per gap.
Grab by the firing bar and lob the grenade. The square falls out of place apon inpact causing the firing bar to be released. It shoots firing out the green pellets in random diriections.

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    35 Discussions


    10 years ago on Introduction

    hey do i have your permission to make an instructable on how to turn this into a time-bomb it keeps all its power it is just set to blow at a certain time and i would like to know if i could

    4 replies

    thanks but it might be mabey a week my internet goes ultra slow ss i cant put pics and vids on i need to go to a wifi hotspot


    you can make anything regardless of your experience; that's what instructables is about: making it so that with the right supplies, anyone can make anything.


    I can, technically, build just about anything from a couple external pictures of it. My gun is so simple that anyone could build it from just the intro pic; I just gave it steps so 'ibles would be happy with it. BTW, my gun IS pretty good, so why not build it? At the size shown, it makes a decent sidearm or a main gun, depending on your preference; I made a couple of much smaller ones that fit easily in pockets, but they can also be made much longer for other uses, such as sniping, but you have to remember to add one RB to the chain for every four sections you add on.


    so can i but might need a few angles pics as well to see a glimpse of the inside i once build an SMG from thatt way took me literelly 4 hours


    10 years ago on Step 1

    Wow why waste this much time building the grenade that blows up in like 2 seconds

    1 reply