Introduction: Simple K'nex Pistols

Picture of Simple K'nex Pistols

This is a simple design that took me about an hour to think up. My inspiration came from the Halo 2 Pistols, im sure someone would have pointed that out. These guns are muzzle-loaded weapons with no magazines, so theyre one shot, one hitters. The firing pin is held back by my own trigger design which is the strongest I have seen, for long-time use. Complete with rudimentary tower and notch sights like on a modern pistol, it provides medium accuracy seeing as how the barrel is only 2" long.

I apologize in advance for almost all of these pics being blurry as hell. I lost my good camera.

Step 1: Build the Barrel Component

Picture of Build the Barrel Component

It is critical that you have the white rod attached at the exact red connector, or the grip will not connect with the frame properly. Also, remember to add the green rod at the top of the end white connector, it is the front sight.

Step 2: Build the Hand Guard Component

Picture of Build the Hand Guard Component

It may be hard to see, but there is a hinged piece in the top right part of the frame. This is key for the anchorage to the overall frame.

Step 3: Build the Grip

Picture of Build the Grip

This is a totally solid grip that seems like it has a flimsy fastening system to the frame, but I assure you it is strong if you attach it properly (in future steps)

Step 4: Build the Trigger System

Picture of Build the Trigger System

This is my fool-proof trigger mechanism. If you build and install it properly, you should have noooo problems with the strength of it.

Step 5: Build the Top Part of the Pistol

Picture of Build the Top Part of the Pistol

This top part has nothing to do with the functionality of the pistol, but it does contain the sights, not that you really need them.

Step 6: Attach the Grip to the Frame

Picture of Attach the Grip to the Frame

And so you begin to assemble the whole thing, starting with the grip. The small black connector attaches to the white rod, and then you slide the five red connectors until it is pressure fit into the first of them, and the taller black connectors fit into the space where the single blue spacer is before the two two-piece gray connecters.

Step 7: Attach the Hand Guard Component

Picture of Attach the Hand Guard Component

Now, you have plenty of assembley to do. First:

-detach the two yellow connectors from the white rods that contain the blue spacers in the hand guard.

-slide the white rods through the second set of two-piece gray connectors, then slide on the two blue spacers.

-attach slide the two red rods through the first set of two-piece gray connectors, and attach the two yellow connectors in between them

-attach the two red connectors of the hand guard to the bottom of the two blue rods at the bottom of the grip

-attach the green rod thats attached to the hinged connector to the fourth red connector from the muzzle.

Step 8: Attach the Trigger Mechanism

Picture of Attach the Trigger Mechanism

Snap the yellow rod to the thrid (90 degree) spot on the two yellow connectors that were a part of the hand guard. Slide the single gray connector and small black connector into the space created by the gray spacers. The small black connector should totally block the barrel.

Step 9: Attach the Pistol Top Component

Picture of Attach the Pistol Top Component

Snap in all the exposed rods into their corresponding spaces on the front and back white connectors. Attach the red rods to the first (second from the front) white connector. Attach the single white rod to the back white conncector.

Step 10: Build and Slide in Firing Pin System

Picture of Build and Slide in Firing Pin System

Note: if you dont want to continuously repair the firing pin from detaching itself every time you fire, I highly reccomend either gluing with plastic cement or thoroughly taping the small black conntector to the grey/black rod. (DO NOT GLUE THE ORANGE CONNECTORE!!!) the orange connector is used to pull back the pin.

Step 11: Attach Elastics

Picture of Attach Elastics

Attach one long and stong elastic to the front of the frame into the protruding ends of the grey rods for the firing pin, and one to the trigger (the bigger the better) so it automatically sets itself in when you pull back the firing pin.

Oh, and by the way, I know that the trigger will click into place when you push it all the way forward to load it, it makes it safer.

Step 12: You're Done!

Picture of You're Done!

Now, go and use these pistols for only a good cause, like shooting squirrels or your little sister... just joking... or am I?


blackopslover2000 (author)2011-04-01

nice pistol crappy graphics

mmmmmmmmmmmmm (author)2010-10-09

buy a better camera! but cool pistol

joshualater (author)2009-07-24

yeah take the handle apart and show step by step

joshualater (author)2009-07-24

lol i clicked on it BECAUSE it looked like a halo magnum (FTW in halo 1, it pwns all, in other halos... it sucks!)

KnexFreek (author)2008-03-25

First i want to tell you your gun is awsome and your pictures are amazing and second You got a good reveiw/comment from Flie-ing goose on a single shot gun THATS HUGE!!

knex freak101 (author)2008-02-11

yah you should put more views -1

dsman195276 (author)2007-12-21

are theese things worth building? i wal thinking about making them but i will have to take some guns appart.

I think it is a good gun to build for its relatively good accuracey and high power, but its really only worth building if you also make the mech upgrades, in another instructable AP2 upgrade. dave

mrbox (author)2007-11-14

I made this gun, it worked great, a little confusing in some areas but I eventually resolved it, overall great design great everything nice job =D
I also doubled six rubberbands on the gun and modded the ram to hold and balance alot of tension. And I only used an exact 18cm of tape to tape the ram =)

biggio (author)mrbox2007-12-08

just put a spring on the rod prat of the ram

knexmaster#1 (author)2007-09-30

no one can understand your directions.

noskid7 (author)2007-08-10

PLZ reply... should i post instructions on this energy sword??

Knexfan (author)noskid72007-08-11

YES!!!!! Please post the sword. I really want to make it. Could you reply on my forum when you do with a link to get to the instructables? I want to make it so bad, but I couldn't just from this pic. I'd appreciate it if you did. Thanks, man.

noskid7 (author)Knexfan2007-08-11

the instructable will be called "Knex Energy Sword". Itll take me a month to post because uploading the pictures takes a long time.

Knexfan (author)noskid72007-09-11

Hey, it's been 1 month exactly. If your done with the sword, I made a group just for Halo weapons, so join if you want to. Also, please post this instructable on the group mentioned above. The group is called K'Nex Halo Weapons. By the way, you don't have to join or post if you don't want to. Thanks man.

Knexfan (author)noskid72007-08-11

Cool. Thanks a lot man. It Looks awesome in the pic, and I cant wait to build it. By the way I hope it was ok for me to use your pic to show people what I was talking about. If it's not, tell me and I'll remove it.

noskid7 (author)Knexfan2007-08-13

Just plz dont get disapointed if it turns out to be flimsy or delicate because thats how mine turned out to be :(

Knexfan (author)noskid72007-08-13

That's ok.

halo99 (author)noskid72007-09-01


Awsomechenie (author)noskid72007-08-30

i woud be kool to so.. ok plz

Kaiven (author)2007-06-03

lol i was thinking of making my own halo weapons too. i made an energy sword, but i had to destroyit

Neo1 (author)Kaiven2007-06-19

look at my energy sword

Neo1 (author)Neo12007-06-19

should I post it

captianchase (author)Neo12007-09-07


Kaiven (author)Neo12007-06-19

umm... mine was life size, 4 ft long

Neo1 (author)Kaiven2007-06-19

I was just trying to make something that looked like a energy sword

BLACKROD (author)Neo12007-06-27

Hehe, looks like an exact replica. Funny. Good job.

04bobby1 (author)2007-09-01

This is a brilliant gun im going to make it after ive made and tinkered around with mepains sniper i might find and upgrade for it, i doubt it this gun look realy cool cant wait to make it birlliant.

HK.RBG.armorer (author)04bobby12007-09-01

If you didn't already see it, there is an upgrade for this pistol to a slide-cocked one called: AP2 Slide Pistol Upgrade from Simple K'nex Pistols.

04bobby1 (author)HK.RBG.armorer2007-09-02

Cool im going to look know.

04bobby1 (author)04bobby12007-09-02

I had already seen that one i didnt know you made it cool i will also make the upgrade ive gust been on Halo and i realy realy realy whant to make that gun know if you wont i can still try and fing and upgrade for yours so it auto loads. :-)

Hitman 7 (author)2007-07-31

i think this gun is awesome!!! i just finished building it so i will go and test it and see what it is like!!!

refuel45 (author)2007-07-29

good fun bad firing pin it always pops off like every tine i shot it it broke off the part the rubber band goes on

pates1 (author)refuel452007-07-30

I have a way t fix your problem.... put grey connecters on the fireing pin for support.

Knex Rules (author)2007-07-13


phlorgan (author)2007-07-10


Baron A (author)2007-07-03

The K1 Kruger coming soon!!!!!

ClemensY290 (author)2007-06-29

you need to clarify and or make an exploded view of it you know take a few parts off and set thm next to each other like they were torn apart

crestind (author)2007-06-20

Nice style to it.

gunmanx (author)2007-06-19

this is confusing

ryan knexer (author)2007-06-12

looks cool and im new

anshuvio2 (author)2007-06-11

this gun is pretty cool! it shoots around 20-30 feet, perfect sidearm!

e-hizzle (author)2007-06-05

pretty good gun in halo, amazing gun in real life great i dea halo rocks!!!!!!!!!!!!!!

mmzdaniel (author)e-hizzle2007-06-07

i wold buy the Xbox 360 even just to play halo 3 lol... HALO RULES!

sak-j (author)2007-06-05

how far does it shoot

Flie-Ing GOOse (author)2007-06-04

this is a smart gun, when i say smart, i meen very smart the best single shot weapons in ages even maybe ever! like you say its great with two and i have 2 admit its better than my single shot guns, i moded this so the top part of the gun doesn't get in the way of the trigger, i only had 1 problem, as i pull the firing pin bach i have to push the trigger forward a bit , but that doesnt affect the coolness of this gun! great work! Flie-ing goose

HK.RBG.armorer (author)2007-06-02

ok guys, I know all you are tellin me to make a mag for this puppy, but i never will. I have been experimenting and I found that even if you have a near perfect breech and mag system, you ALWAYS lose power and accuracy, so for shooting, this is the best pistol i've made. ALSO: EITHER TODAY OR TOMORROW, I WILL POST HOW TO MOD THIS PISTOL INTO A SLIDE-ACTIVATED/RELOADED ONE, WHICH CAN HANDLE A HELL OF ALOT MORE POWER!

Kaiven (author)HK.RBG.armorer2007-06-04

AND a true plasma pistol is single shot(if you charge it)

agent harmsy (author)2007-06-04

sweet!! definitely will build!

zero0928 (author)2007-06-03

I would love to build this but pics are kinda hard to understand like the gripbut althogether this looks rrly good.

About This Instructable




Bio: I like to think of myself as someone who only satisfied with high quality projects, and "whats's it matter to ya, when you got ... More »
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