Introduction: Lego Portal Gun

Picture of Lego Portal Gun

This will show you how to make a Portal gun model from the video game Portal, using lego. (no it doesn't work)

It features interchangeable colors, blue and orange. (step 6)

The steps are in the photos.  I have highlighted the pieces you need to add with each step.

Includes optional stand. (step 5)

See also:

Step 1: The Pieces.

Picture of The Pieces.

Listed in these two pictures are the pieces you'll need to build this.

Step 2: The Barrel.

Picture of The Barrel.

First is the barrel and the prongs.

Step 3: The Body.

Picture of The Body.

Now the main body of the gun.

Step 4: Attach the Barrel to the Main Body.

Picture of Attach the Barrel to the Main Body.

Here is how to attach the barrel to the body.

Step 5: The Stand.

Picture of The Stand.

I figured out you could build a stand for it with the extra parts.

Step 6: Interchanging Portal Colors.

Picture of Interchanging Portal Colors.

 As you know when you shoot a portal the glowing parts change color, here you can change the blue and orange colors.

Step 7: Done!

Picture of Done!

Now your finished! Enjoy blasting your Lego guys with portals!

Here are some different views of the gun.


g-manYYC (author)2016-11-20


mattbenai (author)2016-09-16

The back part seems a little disproportionately small, but apart from that, I LOVE IT

AmrCemal (author)2016-04-27

i want it

AmrCemal (author)2016-04-27

i wnt that

ItaItalian (author)2015-09-29

lol its a incridble

redstonemechanic71 (author)2015-08-02

AWESOME!!!!! You must have worked for a long time on this! ;)

NathanH1 (author)2014-07-31

sweet! this is a lot like the real one!

drkwhitedragon (author)2014-01-31

Add potated glados! :D

nvmbed (author)2012-06-13

What is the correct name for this "open cockpit" piece? Can't find this anywhere.

alindley (author)nvmbed2013-04-10

Just found it after a while of looking. According to BrickLink, it's called: Windscreen 4 x 4 Roll Cage

monsterlego (author)nvmbed2012-06-14

I has no clue :P I'll try to find it

gordonfreemanisalive 23 (author)2012-07-01

pretty cool (author)2012-06-13


hrodriguez7 (author)2012-06-05

it would be really awesome if you put an LED in the front or a laser in the front!

3ddementor (author)2012-04-15

Nice Job
I love the accuracy of the model, it looks as if there was an actual kit designed for this build!

Geeknxt (author)2012-03-11

Could anyone post a .ldd file for this?
I don't have all the parts and I really want to make this.


monsterlego (author)2012-03-10

Thanks! (I'm hoping to get a minifigure out soon.)

Jsquared24 (author)2012-03-10

Awesome! You are a really good lego builder! 11/10
And nice touch with the interchangeable colours :)

monsterlego (author)Jsquared242012-03-10


About This Instructable




Bio: Cosplayer and artist, i also enjoy making neat stuff out of Legos. You can follow me on Twitter (@TheMagicalMark) to check out more of my ... More »
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