Instructables

K'nex Semi-Automatic/Repeater/Shotgun

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Note: By reading this, you accept the "Terms and Agreements" below.

Terms and Agreements:
Any pain inflicted by this "gun" or by your own idiocy while attempting to build the "gun" is not my fault. Deciding to shoot your friend/your toy/your pet/yourself is your decision and your decision alone, though there is always the influence of others. I cannot and will not accept responsibility for your actions, unless I, in any way, shape, or form influenced you directly within a distance of 10 yards (9.144 meters) of you to shoot your friend/your toy/your pet/yourself, etc.This is not a toy. This is a potentially lethal weapon.

This "gun" is built from two parts: the magazine/feed and the barrel (ram included). A couple of things you will notice about this "gun" are that it has no stopper/blocker/whatever the thing is called that stops the ram; it jams readily if not fired correctly (and if you just aren't lucky, but it is easily unjammed); by shotgun I mean 2 bullets at a time (you will realize how annoying this turns out to be later); and, finally and most importantly, the magazine is detachable (meaning you can remove it and attach a fresh one instead of having to constantly reload!!! OMGZORZ!!!!).

Note: Any list of required pieces is the list of pieces I used to build my version of the "gun." Certain pieces can be exchanged for others.

Special Thanks to: (your name here), an actual Instructables username, for the amazing magazine design. You will notice that I modified it slightly.
 
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Step 1: Constructing the Barrel and Ram

This is the easy part.

Ram:
1 black rod
1 tan clip connector
1 red connector
1 orange connector

Barrel:
2 yellow rods
1 red rod
8 orange connectors
7 red connectors
2 grey connectors
1 white connector

The ram is self explanatory.

For the barrel, just attach the many pieces onto the single red rod.

Please excuse the blurry pictures.
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use white connectors instead of green for a larger mag
oblina2 years ago
where does the last 2 orange and 1 green rod go together?
oblina2 years ago
piece count please
looks simple and dangerous. :-)
not semi auto
semi meaning pull the trigger back and firing and auto meaning when the trigger is replaced at its place it has reloded automaticly !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
can you make a handle for this?
Dazzlinmath3 years ago
good gun but there are some problems it it
eric12343 years ago
love the mag
KnEx_MaStEr3 years ago
i love this!!! 5.0
Well if its a potentially lethal weapon, why build it? If I wanted something lethal, I could get my dads real 12 gauge shotgun or just use my compound bow and kill something. Now that's lethal.
Honestly why would you play with knex at your age. No offence or nothing. Its still cool though. But sad aswell.
This is late, but they are fun.
i wish we had real guns at our house.
xiao hawk (author)  Mr. Dudeness5 years ago
Well your dad's real 12 gauge shotgun is potentially lethal too. All knex guns and all weapons for that matter posted on this website are potentially lethal too. Why build those? Because they're more potentially lethal than this one. So please stop wasting your time and my time here.
potentially lethal??? sure. my best gun shot at like,i dunno,40 feet. If an airsoft gun at 300 fps. fires spherical rounds of about .2 grams 175 feet with a 11 gauge spring.i doubt that this could fire a round of like 4 gram rods hard enough to kill anything,but,hell, what do i know?
Oh jesus, I really didn't mean to start a big debate about all this, I completely forgot i had that comment and people are still replying 3 months later. Wow. Um, yea you go with your conversations then,i probably wont be replying anytime soon.
and i could simply get my OWN (yes, it's legal to own one) PS-G1 converted(by me) to fully automatic.
post a pic of it
here it is
psg1%5B1%5D.jpg
I shall
TigerNod5 years ago
(removed by author or community request)
for #2 it is potentially lethal, here is a list of how it could be potentially lethal: you could beat someone over the head with it, you could stab them with a sharpened firing pin, young children could choke on the small parts, and they could be shot repeatedly until they go insane and go jump off a cliff somewhere or something. and it is semi auto you just have to add an orange connector to the firing pin and call it a trigger, then it could be semi auto. and who cares about looks? he only called it a shotgun because it has a spray.
for #2: that's unfair :-(

It is not semi auto because you have to cock it before firing. This system is called a "bolt action gun" or "repeater". A block trigger does not change anything to that. (neither does a true one.) This is a semi auto gun: http://www.instructables.com/id/TrueSemi-automatic-Knex-pistol./
i mean't put an orange connector on the ramrod or firing pin, you would mount this to a bigger frame, and pull that connector back and let go to fire it, thus a crude, but effective semi-automatic shotgun.
That sounds awesome, but the reply is a bit late, eh? Look at the date, it's a year old!
now it's only 15 minutes old.
The other comment, the one from 2009.
i was talking about your latest one.
And I was taling about the one from 2009.
cool gun thanks i forgot how to make this clip
sdds4 years ago
try to make a true trigger for this gun
Rhino255 years ago
HOW IS THIS A REPEATER!
TOCO5 years ago
I built it a few weeks ago. It is awsom. great instructable.5 stars
agent47.5 years ago
are you a maker of pivot
DrWeird1175 years ago
asmasrip5 years ago
push the yelow part on the barrel forward so its like a lock
jinjaboy6 years ago
this looks awsome im gonna make this i have a way of putting a trigger on it i might post it awsome
dinky6 years ago
cool idea that magazine 4stars
i know a good mod for this gun!!!!! LONGER MAGAZINE!!!!!!!!! what do u think???
i cant seem to work it.
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