Knex RBG Plasma Pistol (Better Instructions)

About: none, absolutely none

This is a KNEX Halo Plasma Pistol. Please remember that I did not make this. This gun is property of Halo 123 Guns. He created this gun from Halo 3. Once again, it is a gear RBG (rubber band gun) plasma pistol from the hit shooter game Halo. I made this instructable for easier instructions.

*Some Mods. By Me*

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Step 1: The Frame

The frame of the gun is what is shown below. Be sure to make two of them, one for each side.

Step 2: Some Add-Ons

Here are some add-ons to the frame.

1-2) Filler Thingy
3) Where the Filler Thingy Goes
4) Another Filler Thingy
5) Where the other Filler Thingy goes
6) Once what is it?... oh yeah, a... FILLER THINGY
7) Where the last filler thingy goes

Step 3: Firing System and Trigger

This is the firing system. Instead of a white connector with eight white rods for the rubber band holder, it uses two gears, giving it the maximum hold of 35 rubber bands. The trigger is pretty simple.

1) Make two of these
2) The Trigger
3) Where It All Goes (sorry for blur)

Step 4: The Handy Handle Helper

This is just three yellow connectors on a blue rod attached to the handle.

1) Attach this to the handle.

Step 5: The Top Rail

Just a rail. The rubber band goes on here.

1) Make this
2) Add These
3) And These

Step 6: FINISHED!!!

I think you get where the rubber bands go. As for the trigger, get a rubber band and stretch it on both sides to the third rod from the trigger.

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    78 Discussions


    9 years ago on Step 2

    umm what is the filler thingy i can't figure out how to build it

    FlutterTreeSonicX 22

    Reply 9 years ago on Introduction

    It's pseudo semi-automatic, whereas you load the rubber bands on then pull the trigger to fire. ALL YOU DO TO FIRE IS PULL THE TRIGGER REPETITIVELY. That's what makes it so fun. :)

    it is semi auto in the sense of 'pulling the trigger and firing'. (like my halo gun) However, it is a completely debatable topic, so I was unwilling to put 'Semi-auto' on this one. (also, this model isn't mine)

    eatin chiken

    9 years ago on Step 1

     this is a good photo. it really helped me because of the PoV you used.


    Reply 10 years ago on Introduction

    i will make a plasma pistol!!!!! actually i did Look lol watch for a slideshow or instructable!! It is blunt force and it hurts like Heck lol.


    Reply 10 years ago on Introduction

    // ] That is mt link for my pistol Slideshow.!


    10 years ago on Introduction

    i mean iff u make the rubber bands attached u can make some mag i the middle so the rubber band will ake the rod s\to the end. Cuz the rubber band shoots off, But now to ROD and the RUBBER BAND wil go together so you will have a gun that shoots like 20 bullet,s without reloading .. xD


    10 years ago on Step 3

    my trigger doesn't work it end up already touching the gears and not being able to move

    1 reply

    10 years ago on Introduction

    Hey man i came with a idea but now really able to make it jet its just an idea, Behind the rubberbands. Make some magazine so it can shoot rods wirhout reloading all time xD try making it (can be usefull this xD)


    11 years ago on Introduction

    is pineapple bob the great sgt milk on youtube??!!! or were u just showing him that video just because?

    1 reply