video Make a $4 BB Gun & Airsoft Flamethrower
The above video demonstrates two modifications to my previous airsoft machine gun design.

If you missed my previous article in which I first showed how to make an airsoft machine gun from a soda bottle, it can be found here: http://www.instructables.com/id/Make-an-Airsoft-Machine-Gun-from-a-Soda-Bottle/

Could you make an Instructable for your back pack you have?

PLx21 year ago

This sounds so cool! Watched the video and I think it would be helpful if you would include the materials list in the discription otherwise sounds great!

Oh and thx for teaching me how to do this NH
I used a ball valve instead of a air compressor blow gun since it was cheaper:)
2014, 5:22 PM.jpg
This is a pretty cool project. I will show a picture of one i just made if i can post it
schmooj1 year ago

I don't have any of the supplies so how much do you think this is going to cost?

I'm having trouble finding the air compressor adapter, especially the quarter inch one. Any ideas where i can find one?
ian91142 years ago
i must make this!
RamboD31132 years ago
This version of an air rifle is very interesting.  
If you have electricity at one of your bases with the air compreser it would be great to protect the base it could take down lots of people at once they wouldnt even know what s coming
dwalters22 years ago
Has anyone made this but instead of a bottle use pvc pipe?????
hunter11253 years ago
At what pressure do you typically fill the tank to?
carlsands3 years ago
how do you reload the bb gun
Mr.JZ carlsands3 years ago
Just Removing the End bottle cap and then you'll put these bb's inside the bottle....
minijc3 years ago
has any body seen the mini gun this guy made very cool.
matthewb63 years ago
Building one soon. Probably will get a Co2 auto bike pump for quick refills and use this at our local CQC course... Domination, here I come.
Oh, an btw, have you gotten this thing crhono'ed for fps or something, maybe an estimate?
NightHawkInLight (author)  matthewb63 years ago
CO2 is dangerous to use in PVC. It is too cold and far too much pressure.
Ok, thanks. I'll find something that may work. Lol.
Ch33se873 years ago
What if you used a c02 bicycle pump to fill the air tank? Would the gun still fire properly?
Knowing this is based on air pressure and not gas, it should... I didn't make this, but it should.
*edit* No. Refer to comment above.
ewak3 years ago
tinker2343 years ago
as the trigger
tinker2343 years ago
the first mod could be used in a form by using a clamp
Thanks for this instructables it is amazing but i have a couple of questions: how long does the air tank last for, how can i extend the air tank, and does the air tank have to be shaped like a U or is that just to fit in the back pack? thanks allot for this instructables.
tomhubbard3 years ago
This is a fantastic instruct able! I had 10 minutes free at work the other day and decided to give it a go. Wow! This things is amazing! So powerful!

Here it is..

dude thats freakin cool
aca153 years ago
This is awesome!!!!!
shiraazstar3 years ago
man you actually rock !!!!!!!!!
NightHawkInLight (author)  shiraazstar3 years ago
Thank you very much
helloze3 years ago
Nice use of simple materials, elegant design. Also, well done on the video editing.

What if the pressure you keep in the tank and how long can you shoot? I have taken these PVC tanks up to 150psi myself. I wonder how long before you have to refill.
NightHawkInLight (author)  helloze3 years ago
I only take mine up to about 120. That is what I am comfortable with. It fires for about 20 seconds before needing a refill.
this is so epic! i'm going to build this and dominate my friends!
Johnhall443 years ago
One word.....EPIC
wheres the flamethrower part?
Aron3133 years ago
That is awesome! How far does it shoot? And can i make the gun part like you did with the mini-gun that you made so that the bbs will shoot farther?
NightHawkInLight (author)  Aron3133 years ago
Thanks! It shoots a good 150 feet or so. With a longer barrel like on my minigun project it would go much further. You can also just use a longer brake line and not insert it all the way into the bottle.
Thanks for the info and your instructables!
Robot Lover3 years ago
If you have one of those small air compressors, you could power it with a small laptop battery or power-wheels battery.