Back in mid November of '07 I was itching to try out at making a rubber band gun out of K'NEX, but I was disappointed with the performance of the designed guns that I came across. So after some tinkering I came up with a design of my own. This firing mechanism is simple and performs great with a variety of rubber band ammunition.

  • Notice
  • Please observe caution when using this rubber band gun mechanism. Parts will fly off if loading rubber bands improperly. Please use sense to match the rubber band size to the mechanism you are building, and please play safely.

This is a semi-automatic rubber band gun with 8 pegs. This design includes a safety for the trigger, and an easy loading system.

6.19.08: These instructions are being updated to feature the barrel and quick stock seen in this design. Check back soon for these updates.

 
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Step 1: Receiver: Making the Side Pieces

rbg1step1.png
The receiver contains the wheel, spacers and trigger sandwiched together. Create two of these side pieces.
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screenguy says: May 29, 2010. 6:50 AM
 i modded thid gun so it shoots farther and pretty neat systen i built the barrel by looking at the pics and i got it right
KnexFreek says: Dec 19, 2009. 10:49 PM
 does it shoot one at a time or all at once?
123bob321 says: Nov 19, 2009. 8:56 PM
i want the barrel instructions badly. (lol i tried 2 make it by picture)
danroy99 says: May 28, 2009. 6:25 AM
where could I find instructions for the rest of this gun
cj81499 says: Sep 3, 2009. 5:30 AM
you dont need them just look at it i is easy if you think. i did it so it cant bee that hard
cj81499 says: Sep 3, 2009. 5:32 AM
ps the instructions leave out some major info but i can give you some pics of the mech i did for this it is a little different but not by alot
cj81499 says: Sep 3, 2009. 5:32 AM
pps and pics of the barrel
revtiedye says: Sep 2, 2009. 2:29 PM
If you have a good supply of Knex, you may want to check out my adaptation of this gun. It does have full instructions, even though the last few pictures are blurry. I've had good comments--and a few criticisms. But it does take a ton of green connectors; I was trying to make it sturdy.
http://www.instructables.com/id/Gunzo-the-Great-Knex-Automatic-Rubber-Band-Gun/
cj81499 says: Sep 2, 2009. 1:51 PM
(removed by author or community request)
cj81499 says: Sep 3, 2009. 5:29 AM
never mind i figured out how to make it and i added the knex awsome stock it is soo cool!!!!

link too it below

http://www.instructables.com/id/knex_awsome_stock/
hobobob says: Aug 24, 2009. 3:20 PM
my picture has a hobo with a sign saying children captured by ninjas need $4 karate lesseons
hobobob says: Aug 24, 2009. 3:18 PM
i need some k'nex gun instructables to get me started out and i need some ideas for making one
samsara55 says: Jun 17, 2009. 8:36 AM
its nice
danroy99 says: May 26, 2009. 5:16 PM
could you please hurry up with the rest of the instructions I'm excited for the instructions for the barrel and quick stock
therandomperson says: Apr 5, 2009. 7:12 AM
Is there a mag on that gun?
64runners says: May 15, 2009. 5:28 PM
no its a Rbg
therandomperson says: May 16, 2009. 2:05 AM
well naa i can see stupid just some people can put the 2 togethrer....
therandomperson says: Apr 5, 2009. 7:12 AM
The pictures aren't perfect...
brammeke11 says: Feb 5, 2009. 7:55 AM
This is not that good but is mod able. i made an 8 round 3-shot shotgun out of this, with comfi handle.
FutJJ says: Jan 10, 2009. 8:45 AM
i made a sniper with this system, just watch it, also made a p90, but taked the p90 apart
ghost19855 says: Dec 29, 2008. 10:23 AM
you are soooooooooooo stupid you changed every picture and this gun doesnt even work!!!!!!!!!!!!!!!!
Wafflicious says: Dec 29, 2008. 8:25 PM
it does if you add green rods to the trigger inside the gun
DJ Radio says: Aug 6, 2008. 7:16 AM
Can I use your trigger mechanism on my new gun. I wasn't gonna ask, but you haven't given the instructions for the stock and barrel
adamsdead says: Dec 7, 2007. 10:39 AM
Why did you do the same thing as bedbugg? Its retarded!!!! Why is everyone creating new accounts == JUST == so the can have a better rating?!!!
DJ Radio says: Aug 5, 2008. 9:34 PM
dude, this guy beat bedbugg by 7 months!
Knexagon says: Dec 17, 2007. 12:56 PM
He made this instruction first?
adamsdead says: Dec 17, 2007. 1:36 PM
so?
DJ Radio says: Aug 5, 2008. 9:29 PM
this is good, I've added a new stock and bipod, but I do have a complaint this is full auto and is only semi-auto if you have fast fingers (that happened once, the semi-auto) I really liked the safety, it's a nice touch for when you are playing a knex sniper game and you are assaulted from behind and the gun is stolen. the guy will try to use it, but can't pull the trigger. neat prank....
hornbadoing says: Jul 29, 2008. 9:04 AM
make a youtube vid on how to make it kk
MrRadicalEd (author) says: Jun 18, 2008. 9:23 PM
An update this instructable is in the works do to my acquisition of some new toys. All of my future Knex instructables will be in this new media.
sml-krbg1.png
DJ Radio says: Jul 25, 2008. 10:48 AM
that makes the ible worse....
Storm950 says: Jun 20, 2008. 3:21 PM
Umm, what do you have planned for your future Knex?
MrRadicalEd (author) says: Jun 20, 2008. 5:03 PM
I have two gun models, some automotive parts I am considering, and some misc models for fun.
chinese_boy says: Jun 6, 2009. 4:37 AM
whats aking so long for you to update this article
brammeke11 says: Jul 4, 2008. 1:10 AM
may I have your parts list on sketchup or maybe you can export them too the sketchup library
brammeke11 says: Jul 4, 2008. 1:07 AM
nice system, I modded it a little bit and my gun shoots now 24 rubber bands in pairs of 3. do you guys make this pictures with skechtup? man your guys are good... I can´t even build my own house on sketchup
DSC00121.JPG
codemaster2590 says: Jun 19, 2008. 3:45 PM
how did you get the skech up design. Could you tell the website or just how you installed it.
MrRadicalEd (author) says: Jun 19, 2008. 6:12 PM
I used Imperar's knex pieces in SketchUp to model what I had made. It is ridiculously easy; especially if you have ever mapped for a game like HL or Quake.

snake_eyes says: Jun 13, 2008. 1:32 PM
coool
knexarethebest says: Jun 10, 2008. 2:11 PM
hat looks preaty neat but bedbugg2 already used the trigger design.
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