Double Barrel Machine Gun

by bombmaker2

6.4K4030

Intro: Double Barrel Machine Gun

This is a BB machine gun I made. It has two seperate inline vortex blocks inside and fires 6MM airsoft bbs. The gun and tripod are made completely of PVC pipe or sheet and hot glue with the actual innards made from wood and metal. The body is 4" PVC and the barrel shrouds are 3/4". The tripod is also 3/4" PVC pipe. I ran out of spray paint so I can't paint all of it right now. I am also planning to build a .177 cal minigun in the near future. 

30 Comments

conjs 10 years ago

Don't paint all of it it looks great like that :)

bombmaker2 11 years ago

It functions just like a simple vortex block machine gun, but everything is doubled up. So it is really just two guns put into one case.

fatperson1239214 12 years ago

hey do you think u could post an ible id love to make this?

bombmaker2 12 years ago

Sorry, but since I posted this, I've dismantled this to use the parts in other projects. It shouldn't be to hard to build anyway. All it really is is two normal vortex block machine guns put together.

spencer42 13 years ago

One more question, what kind of fps does it get at what pressures, I am on the fence between making a single or double and I wanted the double due to the high rof and the single due to the higher fps, but if they are similar fps then I will go double. Thanks!

bombmaker2 13 years ago

Sorry, but I can't tell you that. I don't have a chronograph so I have no real way of knowing.

spencer42 13 years ago

i came up with a similar idea last night and i was searching in google for similar things and i found this, nice job! just one question could you take a picture or explain to me where the bbs go, the one that i was thinking of was fed by a large weak spring so if you could explain that it would be great. nice job!

bombmaker2 13 years ago

The space you see behind the vortex blocks is filled with bbs. A large weak spring with a block of wood keeps them pressed towards the vortex blocks.


Also, thank you!

ilpug 13 years ago

pretty amazing. im making something similar to this, and like the idea of wooden vortex blocks. might go try this now. this would be great if it just a few more steps, and maybe some simple drawings to illustrate how it works.

bombmaker2 13 years ago

Yeah unfortunately though I had built this before the thought of Instructable even crossed my mind.


Also if you use wood I'd suggest sleeving the hole with PVC because I don't know how much abuse the wood will take by itself.

ilpug 13 years ago

will do. im going to try to use mine in conjunction with a portable battery air compressor and backpack tank.

bombmaker2 13 years ago

Good look with that and don't forget to take pictures!!!

Rdav- 13 years ago

Nice job, i never thought of using two vortex blocks before, its a good idea, must eat BBS up at a massive rate.

Oh and if you want to make it a bit more portable you could; get a car battery run smallish compressor, and a car battery, connect them up to your gun and store them beside your gun in a box designed to look like an ammo box, it would mean it would be sorta portable, iv seen some guys do it before its pretty impressive if it works.

bombmaker2 13 years ago

Yeah it does eat a ton of BBs. That's why I load it with ultra-cheap .12g.

That sounds like a great idea, but I built it mostly for show and doing all that really isn't for me.

kve23 13 years ago

you should add a filling hopper thing or someting so you dont have to remove the endcap to reload it.

kve23 13 years ago

i made a mini one that is a fourth of the size and looks different but uses the same principle. its a great idea.

bombmaker2 13 years ago

Nice and thanks. The way that this one functions is very simple and basic compared to other mechanisms. Check out Spudfies for other ideas. There are some really good ones there
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