Knex RX-Bow




About: I first joined this site in 2008 when I was a bored ignorant teenager with a lot of free time on my hands. Now as of 2019, I’m 23 and in graduate school so I’m permanently inactive here. If you still want to...

Hey guys, this is my first attempt at a knex bow. Its not the best, but considering this is my first bow and arrow, Its a pretty good job.

First of all, I would like to say that i have used a Real bow and arrow about 3 years ago. I just based mine off that bow.

This bow has a lot of features you would find on real bows and arrows. Like the part on the back of the arrow that clips onto the string. It also has something that no other knex bow has- It has 2 Knex "blades" that can be used in melee combat, and if you get someone with the blades in a knex war, It counts as an instant kill, just like if you used a knex knife. The reinforcements on the front are also guards if you are going against someone who has mepain's sword or similar.

Please note that the blades and guard are not optional, as The bow will break without them.

This bow was built with comfort and realism in mind, so its a bit more comfy than the real bow i used 3 years ago......


-20 foot range
-very comfortable handle (even has a split-finger rod)
-uses the least parts of all my creations
-pretty realistic in terms of loading and firing
-decent for melee combat (has blades on both bows, and the reinforcements protect you hand)


-the arrow flips in midair (sometimes i get it to shoot straight though)
-sometimes, the arrow connector breaks from the stick, however, i think this is fixed, if not, its greatly reduced......
-not that powerful
-uses a ton of spacers

This instructable will be split into 4 parts: The core, The arms, Assembly and stringing, and loading and firing.


Step 1: The Core

Ok, This is the Core of the bow. No arms. Please note that this part of the core is entirely assembled on 2 gray rods, and that any exposed rod parts must be covered with blue or gray spacers....

I have several angled shots of the core, Build off those, because i got some new blisters from building this part of the bow, i dont want more pain..........

The grip is 2 gray spacers below the barrel, and it is 7 snowflake connectors, then one gray spacer below, is an eightth snowflake

Picture 1- overview of core
Picture 2- lower core
Picture 3- upper core

Step 2: Lower Bow Arm

this should be easy:

Picture 1- make the lower arm
Picture 2- connect to lower core

Step 3: Upper Bow Arm

Just as easy as the lower arm:

Picture 1-upper arm
Picture 2- connect

Step 4: Stringing the Bow

just easy, the hard part is stringing the upper arm.

Picture 1- string lower bow first
Picture 2- do the upper arm

Step 5: Have Fun!

Have fun with your new bow, and dont forget to comment and rate!



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    87 Discussions


    1 year ago

    Except for bow the upper bow arm keeps snapping off


    1 year ago

    This is a REALY good bow


    7 years ago on Introduction

    dude i just built your bow and it is SICK!!!! I shooting like i never have. But hey can you somehow make it a little stronger? And can you make a knex quiver too? BEcause im trying to find but they the ones i find all suck. plus youre the best knex builder i've ever seen.


    9 years ago on Introduction

    cool looking bow, but I have one question, how many rubber bands should I connect for the bow string?


    10 years ago on Introduction

    erm... just to tell you, your supposed to hold a bow with ur non dominate hand and pull the string with ur dominate.

    11 replies
    An VillainOwenmon

    Reply 9 years ago on Introduction

    i am also left handed so i know how you feel, i have tried a lot of bows and i have found only 3 in my whole life that are left handed and 2 of them belonged to my grandpa and he is lefty too.