Simple K'nex Pistols





Introduction: Simple K'nex Pistols

About: 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 a job to do, you got to do it well, you got to give the other fella hell!" - Gun...

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

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

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

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

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

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

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

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

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

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

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

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!

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



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    60 Discussions

    yeah take the handle apart and show step by step

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

    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!!

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

    1 reply

    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

    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 =)

    1 reply

    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.

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

    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.

    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.

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