Introduction: Knex Semi Auto Pistol With Removable Mag

Hello friends, 
Here is a great new gun. It is a true semi auto pistol that has removable mags. This gun has a little different set up then most normal knex pistols. For one it has no ram rod. This gun uses the idea that Louis XIV came up with in 2008. Kinetic recently came up with an idea and made it into a rifle. For a long time I've wanted to make a semi auto pistol, but the mech he used was way to big. I had to shrink in down a lot and I had to change it up too.

The gun has a removable mag, but what makes this mag different is that the mag is where the barrel typically is.  I did this for two reasons. One, it was more of a challenge. Two, it looks more like a pistol if the mag isn't coming out of the back of the gun. It's also more compact.  The mag holds 4 bullets, which is a small mag capacity for most guns, but the reason the gun works is because of the horizontal mag. The gun shoots 20 plus feet, which isn't bad considering what it is.

I hope you like it!
Tell me what you think!
And don't forget to...

Step 1: Step 1

Picture 1: Build this guy
Picture 2: Add these rods
Picture 3: Make these
Picture 4: Slide them right here
Picture 5: Get these
Picture 6: Slide them over the rod

Step 2: Step 2

Picture 1: Build this guy.
Picture 2: Add white rods
Picture 3: Slide it onto the rest of the gun
Picture 4: Make this thing
Picture 5: Add it on
Picture 6: Make this part. ( yes you have to cut it)
Picture 7: Add it on
Picture 8: Make the trigger
Picture 9: Add it on
Picture 10: Make the hammer
Picture 11: Add it on
Picture 12 & 13: Make these things. ( I made a mistake in the pictures, read the note)
Picture 14: Add on
Picture 15: Add the blue connector

Step 3: Step 3

Picture 1: Remember this? make it again.
Picture 2: Add it on
Picture 3: make this
Picture 4: Place it here
Picture 5: Add bendy rod

Step 4: Step 4

Picture 1: Make all these. (yes the rods have to be cut)
Picture 2: Add it on
Picture 3: Add the clip
Picture 4:Add the other side
Picture 5: Add the connectors
Picture 6: Add the end
Picture 7: Add ram rod
Picture 8: Add band

Step 5: Loading

In the first 3 pictures show where to put the bands.
Picture 4: Make this
Picture 5: Pull the ram back and lock it in the mag
Picture 6: Add bullets in mag
Picture 7: Insert mag
Picture 8: Put that thing there to lock the mag in.

Release the mag pusher and pull the trigger. that easy!
Tell me what you think!


TigerNod made it! (author)2011-10-22

Building right now. I hope this is a good add-on for my ZKAR and a replacement for my KLS. It looks nice, that is.


YOUR zkar? I don't think so O.o

JaredL16 made it! (author)JaredL162016-11-09

He means the specific ZKAR that he built, not that he designed it.

tinyhooman made it! (author)2016-08-30

also, I can't put on the rubber band holders

tinyhooman made it! (author)2016-08-30

that broken piece could use some sanding

conaraptor made it! (author)2011-10-29

I followed the pics and it doesn't work :( I spent ages making it! Try making it clearer. :)

tinyhooman made it! (author)tinyhooman2016-08-30

at least you had fun making it

Skye-R made it! (author)2015-07-15

I'm going to be honest here. It kind of sucks.

Lucas The Boss made it! (author)2013-12-10

It gets like -5 feet it shot behind me every time and jams a lot

myOmy made it! (author)myOmy2014-11-26


NickInventor37 made it! (author)2014-10-29

I have to be honest im disappointed. The range is horrible bad capacity and shoots more up then down but i think this is a very cool mechanism.

jdoggkuhn made it! (author)2012-08-10

and what does it shoot grey connectors or green rods ?

SonicX 22 made it! (author)SonicX 222012-10-12

Grey Connectors are obviously not gonna fit into that...

megustatrains made it! (author)megustatrains2013-07-16

It shoots grey cons. you pull the pusher back and slide them in. (not the light grey cons)

RossTheGreat made it! (author)2013-04-18

Favorited! Want to build it when I have time. I don't need it to shoot more then 20 ft, so its gonna be fun if I can build it right!

PotatoCoffee made it! (author)2012-09-27

It doesn't work.

jdoggkuhn made it! (author)2012-08-10

i want it to hold more bullets can i use a green rod instead of the white one on the green connector and the red connector nice gun by the way

knexcridict5-1 made it! (author)2012-08-01

just built it and i giv it a 1

soldeir 9 made it! (author)2011-10-10

just is..EPIC!!!! 5*!!! yay, i made this instructable 5*!! your welcome! ;) u r simply amazing, Killer~SafeCracker!

Killer~SafeCracker made it! (author)Killer~SafeCracker2011-10-10

Thanks man, I'm glad you like it.

soldeir 9 made it! (author)2011-10-10

how long do the cut rods need to be? what kind of rod should i cut? i have a lot of blue rods...?

soldeir 9 made it! (author)soldeir 92011-10-10

never mind i got it

mulletman6 made it! (author)2011-08-04

Made it - tis very good. The first "bullet" occasionally gets stuck, but the next 3 don't :)

Kinetic made it! (author)2011-07-21

Need a videuh!!! Lol cool gun. Hows v.2 working?

Killer~SafeCracker made it! (author)Killer~SafeCracker2011-07-23

I haven't spent too much more time on perfecting it. It great with one shot but I still need to perfect the loading. But it is better than this already.

Oblivitus made it! (author)2011-07-03

I've come up with a killer new idea for this mech, check it out;

Killer~SafeCracker made it! (author)Killer~SafeCracker2011-07-05

Cool idea! That would give more power. I'm working on version 2 right now. Seeing that the loading was the main problem people were having, I tried to fix that and its a lot more reliable now.

Killer~SafeCracker made it! (author)2011-07-05

Version 2 of this gun should be out soon.

jamesdude made it! (author)2011-07-03

I like the concept.

knexinglemon made it! (author)2011-06-25

picture 7 dosent maky any sence at all

Killer~SafeCracker made it! (author)Killer~SafeCracker2011-06-27

Apparently you cant read the notes. You insert the mag.

Oblivitus made it! (author)2011-06-25

Do the rounds fire out of the top of the gun or through the barrel? Looks like out the top to me.

Killer~SafeCracker made it! (author)Killer~SafeCracker2011-06-25

Out the top.

Bommelding made it! (author)2011-06-20

I don't really get picture 5 o.o
And where does the thing you make in picture 4 go?

DJ Radio made it! (author)2011-06-07

Knex gun contest of the summer: This VS loosewire's semi-auto revolver.

hazza the gun made it! (author)hazza the gun2011-06-15

i made loosewires revolver yesterday and i love it. it really is epic. im sure that it will win

The Nomlack made it! (author)The Nomlack2011-06-07

oh he posted the semi auto revolver? i havent been on KI in a while

apples!!!!! made it! (author)apples!!!!!2011-06-09

He posted it here.

GrandeSwag made it! (author)GrandeSwag2011-06-07

Pfft. Go to kichat.

DJ Radio made it! (author)DJ Radio2011-06-08

Make it a 3 way then.

Raz1r Knex Bull3t made it! (author)Raz1r Knex Bull3t2011-06-07

BakenBitz, Loosewire's semi-auto revolver already beat ooda's by a ton on design. Loose's gun's turret never has to be wound up, thus making it easier to load. Also Loose basically cleaned up the design in general by using his older design, all he had to do was ad a semi-automatic mech.

GrandeSwag made it! (author)GrandeSwag2011-06-07

Huh? Ooda's is probably more efficient because of the lighter hammer, therefore more powerful. I'm not bagging Loose's gun at all, I'm actually building it right now. Loose's gun has been around for YEARS but he never posted instructions. I don't think its even fair to compare it, even though its probably better than this gun. Winding the turret takes two, maybe three seconds at most? It's more reliable.

Killer~SafeCracker made it! (author)Killer~SafeCracker2011-06-07

The point of this gun was to not use a turret. That has been done as you said. I have not seen any pistols that are semi auto and have a removable mag and don't use a turret.  Does Ooda's or Loose's guns shoot better I don't know, but they are a different concept than this.

GrandeSwag made it! (author)GrandeSwag2011-06-08

Never said they were the same gun but I understand where you're coming from. Try making a removable mag without so many broken parts. :)

Kinetic made it! (author)Kinetic2011-06-08

Can I have a link to ooda's revolver?

GrandeSwag made it! (author)GrandeSwag2011-06-08

Hi there are a lot of pictures scattered around...and I don't have the links, sorry. Come to kichat and you can probably get them.

Seleziona made it! (author)2011-06-07

Nice! im gonna make this.

Killer~SafeCracker made it! (author)Killer~SafeCracker2011-06-08

Cool! Let me know how you like it!

Seleziona made it! (author)Seleziona2011-06-09

I made it, I barely got it to work. It shot about once every clip, and the magazine kept coming up so I couldn't shoot. Nice idea, though :)

Killer~SafeCracker made it! (author)Killer~SafeCracker2011-06-09

Did you put that thing on top of the mag like the picture? I haven't had that happen. Try putting a band over the top of the mag. It should still work as a removable mag.

About This Instructable




Bio: Im Killer~SafeCracker, I started using Instructables in 2009. I mainly post in the Knex world, but I venture out sometimes. Check out all my ... More »
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