Rubberbands for Guns

Thanks to many dedicated members of this community, this site is full of fantastic projectile weapons. However, many people, like myself, need tips of what brands or sizes of rubber bands we should use. I built many snipers and powerful guns, but alas, the rubber bands didn't do their jobs. This is what this forum is Intended to prevent. New Twist: Where to get SURGICAL rubber bands. Something not so easy to get.

Posted by King825 10 years ago  |  last reply 10 years ago


The Jamagic rubberbands are no more! =(

We are packing up to move house and I had to throw away the magic rubberbands that I always use to get amazing ranges. I've still got my K'nex though... phew. But Ima have to do with 64#s for now...

Posted by The Jamalam 9 years ago  |  last reply 9 years ago


Is there any way people could send me free rubberbands because ...

I want to make a rubberband ball big as a basket ball.

Asked by jbend 7 years ago  |  last reply 7 years ago


rubber band guns

Instructables needs more rubberband guns so please help design new rbgs

Posted by bob the builder #1 11 years ago  |  last reply 11 years ago


Ideas for rubber band (elastics) guns

From someplace that takes rubber band guns seriously-including accuracy contests...ガンロッカー ( GUNLOCKER )and the translated page.

Posted by jtobako 10 years ago  |  last reply 9 years ago


How do I start a PURE rubberband ball?

A lot of people make rubberband balls starting with a tin foil or paper core, but how do you make a core made of rubberband(s)?

Asked by penrus 9 years ago  |  last reply 9 years ago


What can I do with LOADS of size #32 rubberbands? Answered

What can I do with LOADS of size #32 rubberbands? Something cool. NOT A RUBBERBAND BALL! Thanks :-)

Asked by Hiyadudez 9 years ago  |  last reply 7 years ago


Rubberband gun shooter thing help

I'm new so I'm not sure if I'm posting in the  right area but i need help. I'm trying to make a rubber band gun shooter thing but sometimes when i try to let the rubber band go it gets stuck. I originally used a metal piece with three angles and now im using a old allen rench. Normally when pulled back i use my hand to keep it steady but since i needed to take the picture i used a nail (probably not the best thing to use when stretching a rubber band), but anyways i was wondering if anyone had an idea to make the rubber band  ball thing always go off? P.S.  need an idea for the wooden gun shape.

Posted by Vertox 8 years ago  |  last reply 7 years ago


Klutz rubberband contest- K'nex

Now this has to be a competition we have a chance in. My immediate idea was for a plane, what do you reckon? Ideas welcome, and I may have a crack at it myself.

Posted by knexguy 9 years ago  |  last reply 9 years ago


Can someone help me with a knex gun magazine? Answered

I need a magazine of at least 10 shots that contains rubberbands, best will get a patch and subscription. Thank you.

Asked by knex gun builder freak 8 years ago  |  last reply 8 years ago


Lego Weapons

 Does anyone know of a lego weapon other than a rb gun or a crossbow? Possibly a catapult? Is anyone up to the challenge of making one and putting it up on instructables?

Posted by xraptor777 9 years ago



rubber bands wont always fly off of rubber band gun, need help?

I'm trying to make a simple rubber band gun but the rubber band im using dosent allways come off, it usually flings forward then back not leaving the allen rench I'm using. i need  some advice on getting the rubber band to leave every time. ( the nail in the pic is just there so i could take the picture, cant pull the rubber band back at the same time and get a good one) nails on the side are to hold the rubber bands when not in use.

Asked by Vertox 8 years ago  |  last reply 8 years ago


Hey im new :)

Hey im new guys :), im intrested in rubberband stuff, so...yeah. Does anyone have an rubberband gun intructable? not a lego rubberband gun, one made from wood, a repeater rubberband gun weith a cog n stuff. Well that all :)

Posted by QueroAlpha 11 years ago  |  last reply 7 years ago


How long do your rubberbands last on knex guns?

Just wondering how long your rubberbands last on knex guns and does anyone know a way to make them last longer. I know one way, to refrigerate them, I don't know why but I read it in my book of useless information (thats the title).

Posted by sillydude123 11 years ago  |  last reply 9 years ago


how to make a popsicle catpult?

Its little using one rubberband popsicle sticks and on rubberband im in need

Asked by bigdaddy13 5 years ago  |  last reply 5 years ago


I Need a Strong Knex RubberBand Trigger!!!!!!

I need a good strong knex trigger that can hold a heavy rubber band for my new gun. Please help me!!

Posted by Loosewire; SOE Operative 11 years ago  |  last reply 11 years ago


Where can I get broccoli rubberbands? Answered

Well, since the AST Rifle seems to use so-called "broccoli bands", I want to know where to get them. And only show websites that can accept orders from The Netherlands, 'cause I live there.

Asked by Miles Tails Prower 10 years ago  |  last reply 7 years ago


Can someone make a lego semi-automatic rubberband gun using just pieces from the lego online store?

I can only buy my pieces off the online lego store and they don't have the standard gear used to make the gun. Can someone post a gun that uses the pieces from the online pick-a-brick that is semi-auto or auto and would work with a clip system?

Asked by TheYukomaru 6 years ago


BLOCKHEAD: Precision Knex Crossbow

This is the latest crossbow I've made, the front bow is not that special, but holds a lot of power and is why I choose the name =pThe trigger however, took me about 2-3 hours to make and is a fully working true trigger.Here are Instructions:https://www.instructables.com/id/BLOCKHEAD_Precision_Crossbow/Also 2 video's:Part 1: Showing Trigger Mech and loading: Part 2: Showing destructive power:

Posted by Wicky 10 years ago  |  last reply 10 years ago


Small Foldable Crossbow + Side Project

1st Image: This is what the current prototype looks like, when unfolded. It can pierce through a piece of cardboard using its 1x3 rubber band string. It actually is pretty sturdy, although he blue flexi's could be considered exotic pieces =/2nd Image: This is what it looks like when folded up, when the 4 blue flexi rods are made loose, it will try to fold up.3rd,4th,5th Images: This is what I made in an attempt to make a crossbow even stronger, this one uses 8 strings of 5 rubber bands; 2 strings per wheel. It currently does not have a trigger and it is not possible to fire it without it, because it is impossible to draw back.

Posted by Wicky 9 years ago  |  last reply 8 years ago


semi-auto/full-auto knex rubberband launcher

A semi auto rubberband launcher. really a semi-auto and a by un connecting 2 peaces you can quickly switch to full-auto. uses a new triger system that i thought up. lets the gears turn only when you push the triger. working on instructions. i also made duel rpg pistols useing the same firing system. i will put those in the instructions.https://www.instructables.com/id/semi-auto-knex-rpg-twin-pistolsrifle/

Posted by dsman195276 11 years ago  |  last reply 11 years ago


Help needed

I am creating a collection called the rainbow loom fun collection. I will be collecting until 1/31/14 but, if I do not collect enough instructables  I will extend the date. If you want to find out if the date has been extended you can look at my profile and orangeboard. If you would like your rainbow loom instructables to be added to my collection please say so.            Please help me collect instructables for my collection.        THANK YOU!!  you will help me a lot.   

Posted by marionpixie 5 years ago


the worlds first fishertecnik gun

Well i made a rubberband machine gun. it uses a new macanisem i thought op. the motor turns string. the string is connected on one of the berrals. to load it you pull the string over the berral and put a rubberband on top of it. when you pull the triger the string pulls the rubberband off the berral shooting it. i also put the gun on a universal joint so i can turn it. i just noticed in the picture the string is not connected to the berral. sorry.

Posted by dsman195276 11 years ago  |  last reply 11 years ago


T.V.I.K.T Entry

Here is my entry, it seems to be a mix between rail and slingshot crossbow.This makes it incredibly sturdy and enables me to put the trigger lower.The staircase shaped rubberband string is there to get more power out of a smaller area.Nice and heavy weapon, destroys cardboard easily and gets a nice 175 feet range.Camera on phone seems very sensitive to movement, sorry about the slight blur.

Posted by Wicky 9 years ago  |  last reply 9 years ago


Knex Classic Pirate pistol

This is my new gun, it's a ratchet operated pistol similar to DSman's crossbow, I haven't came out with the averages but it shoots pretty far and hurts like hell. What do y'all think? (I currently have 4 rubberbands on it)

Posted by mutt256 10 years ago  |  last reply 10 years ago


Where can I get good, strong and new #64 rubberbands that can be shipped to The Netherlands ?

I tried ebay but shipping costs about 30 bucks on most pages. That seems a bit too much for a few rubberbands to me.....

Asked by Mr. Muggle 8 years ago  |  last reply 8 years ago


Where can I get free rubber bands?

They have to be out there somewhere... They're lurking in the shadows... They're watching me... I know there has to be some way to get free rubber bands and I would love some help finding them. Thank you! =-]

Asked by travw 9 years ago  |  last reply 3 years ago


my knex robot

This is my knex robot. it fires rubberbands. should i post instructions?

Posted by dsman195276 11 years ago  |  last reply 11 years ago


Decimator Crossbow (v7)

Well I finally got some more pieces, more still coming; this enabled me to build something bigger =dThis crossbow(more like cannon, now) has the following specs:Ammo: 1 Standard arrow, which needs to be ductaped other wise torn to shreds.Weight: 4,5 kilo's (9,92 pounds)Range: Not tested outside, will beat the Reaper and the Blockhead for sure.Rubberbands: 32, 8 strings of 4 ( these may still be increased as it shows no bending yet.)Power: Just look at 2nd picture....should explain a lot.Trigger: Same as on the Blockhead, some big improvements on it though.(Surprised about how power much it can take...)Sturdiness: Seems close to unbreakable lol...Without realizing..I also made a very good scope on it o.oI had a purple+blue 3d connector as arrow tip and when I fired on my cardboard box, it made a huge tear...and my ears were ringing like from an explosion O.o'Well this monster has bad points:Need a long/strong left arm if you are right-handed, because this thing is heavy as hell.Cannot fire without trigger.Every arrow needs ductape otherwise connector gets torn off.Also I gonna try and say...:I think this may very well be the most powerful ranged k'nex weapon on this site at the moment.

Posted by Wicky 10 years ago  |  last reply 8 years ago


Does a bolt on a knex gun pin reduce power? Answered

For example:  You have a black rod pin with female ball socket on the end. You attach three orange connectors to make their holes travel on the pin guide And to look like a bolt. Does this reduce power?

Asked by Knex.X 6 years ago  |  last reply 6 years ago


Why do rubber-bands break? Answered

All of my rubber-bands have broken and im mad. I want answers... NAO!!!

Asked by MrSillyGuns 8 years ago  |  last reply 8 years ago


DragonflY Assault Crossbow

Pictures have been taken, Instructable will have the Y-shaped bow and a normal shaped one. Stock and scope will be optional. And uh...yes these things actually hurt...I shot a few arrows into my own leg..just so I could feel how much it would hurt xD Instructable will up soon, need to find some time to write it.

Posted by Wicky 9 years ago  |  last reply 9 years ago


Who wants knex

Who wants 27 pounds of knex(more than enough for a tr36 and a ksayer all at once) plus tons of rubberbands make an offer.

Posted by silentassasin21 8 years ago  |  last reply 7 years ago


My new semi-auto RBG

This is my new semi-automatic, true trigger RBG. Normally nothing new. But this one can take twice the amount of rubberbands. Thanks to some creative use of a red gear ( I'm aware I didn't use an actual red gear, that's because I didn't have any. So I sliced the pegs of a yellow gear ) This actually started as a mod for Dsman1's RBG, but it turned out to be something different. It still uses the system that is somewhat his, of a red gear turning a blue gear. It can take 15+ rubberbands without tearing itself apart ( Nearly does though ;). My record is about 18 or 19 rubberbands on it. The reliability isn't 100%, because there is an uneven amount of pits in a red gear (33), which are divided by 4 stages. So it's hard to get a good pattern for the rubber bands to shoot of. This basicly means that sometimes it either won't shoot, or it will shoot 2 rubberbands at once. I don't know if this is a problem with an actual red gear though, since my altered yellow is far from perfect. Do you want me to post it, or is there no demand for a new RBG?

Posted by Dutchj 11 years ago  |  last reply 9 years ago


"How Many" Contest #3. Win a patch! =WINNERS ANNOUNCED=

First of all, yeah, it's not really Knex. But this is one of the most popular sections, and this is where I posted the last two. CONTEST ENDS DECEMBER 24. Anyway, there are 2 ways to win. 1) Guess closest to the actual amount of rubberbands. Winner: cj81499 2) Guess how the amount of rubberbands relates to my 'ibles account. Winner: Nobody (Sorry) ------------------------------------------------------------------------------------------------------------------------------------------- The actual relation between the amount of rubberbands and my 'ibles account is that I joined 3/05/09 (March 8, 2009) and 3+5+9 =17. ------------------------------------------------------------------------------------------------------------------------------------------ Note: You can only win once. =============================================================================== knex gun builder: 25. No relation guess. Kairah: 19. Wrong relation. chopstx: 18. Wrong relation. Killer~SafeCracker: 9. Wrong relation. Shadowman39: 22. No relation. Rock Soldier: 3. No relation. shadowninja31: 15. No relation. knexfan9182: 25. Wrong relation. DJ Radio: 20. Wrong relation. knex_builder_freak: 16. No relation. Hiyadudez: 18. Wrong relation. cool bas3: 21. Wrong relation. smilee: 28. No relation. cj81499: 17. Wrong relation. Kinetic: 23. No relation. knex_pls: 84,340. (LOL) No relation. Seleziona: 36. No relation.

Posted by travw 9 years ago  |  last reply 9 years ago


New knex pump action idea

Ok, to start off, If you are wondering why I dont have a gun to demonstrate this concept, its because I just thought of this a few hours ago.So anyways, I have an idea for a pump action concept. This idea would work like thisthe rubberbands would be hooked onto the pump instead of the gun via Y connectors on the pump.when the pump pulls the ram back, the rubberbands do not expand or contractafter the ram goes behind the trigger, the pump is pushed forward, expanding the bands and giving the gun its powerthe pump hooks into a locking mechanismthe trigger is pulled, and either recoil or another mechanism hooked to the trigger unlocks the locking mechanism for the pumpThe advantage of this over other pump action guns would be that the pump would be easy to pull back, no matter how many rubberbands are on the pump.

Posted by DJ Radio 9 years ago  |  last reply 9 years ago


kooonnnnneeecccxxxxxxxxxsssssss sazzyyyyyooorrrzzzz4lzxzzzzz

I izzz makezzzzzzz ittttttttzzzzz!!!!!!!!!!! Here is a video. please note I am using 3 number 64 rubberbands.

Posted by benfoxg 10 years ago  |  last reply 9 years ago


Handheld crossbow (working on trigger) very first Knex gun ever.

Handheld crossbow shoots pretty good,gonna make a new version more powerful and with a trigger and it shoots through the opposite side that the rubberband is pushed down.

Posted by Trigun78 11 years ago  |  last reply 11 years ago


Rubber band aeroplane is not flying correctly

Created Rubberband aeroplane ,and glides fine without propeller.But when the propeller is turned ON ,it just lost the balance and its not climbing into height.The propeller is home made.what would be the reason?.please help me.

Asked by AnasCS 2 years ago  |  last reply 2 years ago


Is there an instructable on the "not a rectangle", where is it, and if there isnt, is/can someone make one? Answered

I would like to build it, so I would really like to see more about it, because I havent seen more than a few pics of it and what it can do.

Asked by Speedmite 9 years ago  |  last reply 7 years ago


Should i post this gun????

Should i post this gun???? it will be my first gun specifications: uses low amount of pieces uses a firing mechanism similar to the killerk srv1 firing mechanism, has a good range if you use a small rubberband defects: it is made with small pieces

Posted by gomas211 10 years ago  |  last reply 9 years ago


New Colaboration Partner

Hello, im looking for a colaberation partner, i have an idea for full auto, posibly semiauto gun, lots of power, true trigger, bullpup. Need help with looks and a tester, i have only 1 Rubberband. Anyone?

Posted by knex gun builder freak 8 years ago  |  last reply 8 years ago


Plane that flies & made only out of match boxes & rubber bands

I remember reading how to make  a  plane  with rubber bands when I was a kid. Could someone help me make one now with only paper or match boxes & rubber bands ?

Asked by mytree 8 years ago


Wearable Mechanical Butterfly Wings

I have half an idea of how to make the wings on my daughter's fairy costume work. My ideas involve vairying degrees of a pulley system, springs or rubberbands, and kite string. Any ideas of how to connect the pieces -or alltogether better ideas- would be greatly appreciated.

Posted by mae060669 10 years ago  |  last reply 10 years ago


new knex gun

Hey i have made a new knex rubberband gun its still in beta testing but i am defenitley going to post it here and i dont yet have a picture of it (i cant use my moms camera) so i will work my best in mlcad its just killerks srv1 handle with a barell of my own creation i made it when i noticed i did not have enough peices to make his gun so i modded mine to make it rubberband gun compatable and i have done this a long time ago but i moded my knife and made a switch blade knife so if you want me to post the upgrades/new stuff yeah i will try and get a video up of each thing soon

Posted by J_SCAP 11 years ago


What is the best way to attach a magazine? Answered

Well, sometimes I have problems with making a magazine, and I want one like ironman's with a flexi rod, but then the bullet won't come out and if I put more rubberbands on the pin sticks in the bullet itself. So I need hyelp with making a good choice for a good magazine.

Asked by erikos kostarikos 9 years ago  |  last reply 8 years ago


REALLY REALLY SEMI AUTMATIC KNEX GUNS !!

Hello everyone, I was wondering Couldt someone mayby make a gun with a magg That has rubberbands in it + a bullet And then u make some trigger system that pushes smal railes Up with the firing stuff Inside the magg Thank y`all for reading and GOOD LUCK !!

Posted by beameron 9 years ago  |  last reply 9 years ago


Crossbow V5 "Reaper"

This is the Reaper...it may not have great look, but it sure is effective.This one uses 4 strings of rubberbands and has a really sturdy trigger which also may be a new design.Sorry for the bad pictures...all i had at the moment to make a picture was an ps2 Eyetoy. https://www.instructables.com/id/Reaper-Crossbow/It is finished!

Posted by Wicky 10 years ago  |  last reply 10 years ago


Is making a k'nex blowgun a good idea?

I'm new at instructables and I have been trying to figure out a good k'nex instructable. I noticed that most of the k'nex instructables are guns. I have posted a k'nex rubberband gun, but I started thinking about posting a k'nex blow gun. Is this a good idea?

Posted by Pax415 11 years ago  |  last reply 6 years ago