Introduction: Vampiric Cyberpunk Double Barrel Shotgun

Picture of Vampiric Cyberpunk Double Barrel Shotgun
Ok, well, as many of you know, bumpus loves a shotgun, for a while he has been demanding encouraging me to build one.

Thanks to Kiteman for kindly point out many just a few mistakes in my write up.

Recently I came across the perfect tubes at work, hence, this project began - firstly, a little video.

The shotgun it self is a fairly normal shotgun, the shells are the special part, each shell is made up from three chambers or 'vials' Each shell contains three substances,

  • A liquid Silver Nitrate Composite
  • A white Metamorphic Acid Substrate
  • And a viscous C4 explosive gel

One shot from this baby, and even the most elder Vampire will fall

Now, on with the how to.

Step 1: The Barrel and Handle

Picture of The Barrel and Handle

Ok firstly, you have to make the base.

I held the two tubes together using some big pegs, I then ran PVA glue down the seem, once dry, this holds them together nicely - repeat for either side.

Using the template for the handle on my sniper, I modified it for a sawn off shotgun, I needed to make this one quite wide, so it had two layers of corrugated card, and two layers of dense gmjboard (thick velum mount board stuffs)

I then build up the top of the gun using more of the gmjboard.

Glue the layers together, let the whole lot dry.

Step 2: The Hinge.

Picture of The Hinge.

I used a simple long bracket for the hinge, I laid out the pieces, and worked out where to drill the holes, I put it in my desk vice, and used a hand drill as it was only cardboard.

Using a couple of bolt fasteners I joined the two halves together.

At this point a bulked up the area around the hinge, to blend it in better, using a few more metal bits, and card cut to various shapes.

I ensured to add an extra lip of card where the underneath of the barrel meets the handle, this prevents the barrels swinging the wrong way.

You can use magnets to hold it closed, but i found that once the bolts were in place, i could tighten it enough that it could swing, but also held itself shut.

I also added a 'bridge' of card for the trigger guard.

Step 3: The Forestock.

Picture of The Forestock.

Bumpus told me a needed a forestock, so I went about it,

Firstly i fixed a base in place onto the bottom of the barrel, I then took a HP ink cartridge and split both the sides off, these then fit over the base.

I then added a trigger inside the trigger guard. Using a few bits of card cut to shape.

Step 4: Foiled and Paint

Picture of Foiled and Paint

I then went about covering the barrels with foil Duct Tape, the idea being to paint over the top, then reveal the shininess.

I applied the foil in sections, carefully applying and peeling back the backing. I didnt cover some of the sections where the hinge might rub the foil off.
I then added a couple of metal bracket pieces to the end of the barrel. Both these were bolted in place.

Next I painted it, a full black coat using Direct to Metal Spray Paint, many coats is the way to go, with a break of 30mins half way. Try not to soak the gun in paint, if the paint looks wet on the gun, you have probably sprayed too much, most the time, you can get away with sanding it off and respraying if needed.

Once it was dry i then dry brushed some silver paint all over. Once that was dry I then used some masking tape to stick onto the barrel and pull off to remove some of the paint allowing the foil tape to show through.

Step 5: Leather!

Picture of Leather!

Firstly I neatly wrapped some leather around the normal handle, I basically stuck it down with PVA, and carefully followed the contours cutting out tabs to allow it to go around bends.
I used masking tape to hold this in place while the glue dried.

Next to work on the Forestock.
For this I decided to play with my new leather stamping set, first using a paper template I cut out a decent shape to fit over the stock.
I soaked the leather with water under a tap, then placed the various shaped tools onto the leather and gave them a quick tap with a hammer - if you don't have some stamping tools, then a large screw driver or other metal shape can be used.

Wait for the leather to dry, then glue it to the stock.

Step 6: Making Shells.

Picture of Making Shells.
I decided the shells were going to be like liquid glass vials.

I have a great source of these due to my mums medication, firstly i needed to clean them out, using various tools I get the seals out the top, washed them, and left them to dry.

Next I made them into clusters of three, wire on one end to hold them together, and more foil tape on the other end. I filled one end with Epoxy Resin to create a seal.

I then got various bathroom products to full the vials with.
I chose,
  • Hair gel
  • Silver Paint
  • Hand soap mixed with a bit of water

Other ones to try would be water and tooth paste, or water and food dye.

Using a syringe I filled up the vials, I then placed the bungs back in place, using a paper clip to allow air out. Once done, I then covered the the two ends with a bit more epoxy to hold it in place.

A final layer of foil tape, and an accent of black using a sharpie finishes these off.

Step 7: Finished!

Picture of Finished!

Thats it, load up your shells, and go take out some vampire, if you want you could alter the substances to make it into whatever you wish. Or you could just use normal Shells

Thanks for reading, and be sure to let me know what you think.

- gmjhowe


LilBangarang (author)2011-06-19

OMG ppl. u crack me up. He's just making it sound cool. It doesn't matter on the realism. No... silver doesn't kill vampires which aren't real in the first place. This is an amazing instructable. Thank you so much man. This officially inspired me. YOU ROCK.

that is blasphemy

h8864 (author)pyrotheblazehog2014-09-15

and the fact that silver isn't for vampires, vampires get killed by removing their heads

Jetmaster360 (author)h88642015-11-10

I thought you killed them by stabbing them with a peice of wood

Nope, contrary to popular belief, staking vampires only paralyzes them. You gotta behead them, stuff the mouth with garlic, and burn the body. It works best if you use a silver dagger.

Incidentally, silver being used on werewolves is another popular misconception. But that discussion is for another time and place...

Iwantbigboom (author)2011-08-08

c4 is pressure sensitive

C-4 or Composition C-4 is a common variety of the plastic explosive family known as Composition C. The British version of the explosive is known as PE-4 (Plastic Explosive). C-4 is composed of explosives, plastic binder, plasticizer to make it malleable, and usually a marker or odorizing taggant chemical.

C-4 has a texture similar to modeling clay and can be molded into any desired shape. C-4 is stable and an explosion can only be initiated by the combination of extreme heat and shock wave from a detonator. -Wikipedia

Orkekum (author)Iwantbigboom2011-08-26

no it's not.

Hugh pressure ANd high impact ANd high temperature

Iwantbigboom (author)Orkekum2011-08-26

it depends on what its made of and what form its in

Dakarta (author)2015-09-07

I am curious to know where you get the gmj board

Doctor99 (author)2014-05-09


pyrotheblazehog (author)2013-10-01

nice work man, that is sooooo awesome
ps. how long was the barrel

AcornWoah (author)2013-06-26

This is legendary...

Terranan (author)2012-09-06

Origin v2 then Winterstorm!
I love Winterstorm....

sonofstone (author)2012-07-29

do you work with wood sometimes? i'm building a sawn-off double barrel hunting rifle, stock is already been built, barrels welded together, all i need is a hinge, could you help me out on this part?

BrefelanDesigns (author)2012-05-17

Came across this again recently, and your "shell" design is giving me some ideas...
Though one question... the song in your video you say it's by Machinae Supremacy... but what is the song title?

gmjhowe (author)BrefelanDesigns2012-05-18

Thanks! Do share if you create anything. The title is 'Winterstorm'

BrefelanDesigns (author)gmjhowe2012-05-18

Thanks for the track info!
I have so many Projects In Progress (or PIPs as I call them)

Hopefully will have finished my Star Wars prop (a prototype version of a lightsaber, in the style of steampunk.) finished before the 25th! There is a local celebration of the 35th anniversary of the first movie, that I want to show off the prop at..

It originally was supposed to be done for May 4th (Int. Star Wars Day), but I goofed up on the month, I though it was next month!

gmjhowe (author)BrefelanDesigns2012-05-19

That sounds awesome. I look forward to seeing it.

faustoyacob (author)2012-03-22


brupielink (author)2011-09-20

That's one hell of a shotgun! Gonna try it myself if i have the materials.
One tiny bit of criticism though.
The vial shells are a great idea and really suit it, but i might be a good idea to
finish the ends of the shells so they look more round and solid, like it's really sealing it off for safety, or to have some sort of acryllic/glass tube/vial over the entire shell itself, making it solid.

Jo-dan (author)2011-07-22

awesome, simply awesome

Sabinbp (author)2011-07-01

those shells look very familiar i saw them in a final fantasy movie or episode of somekind

mastiffman (author)2011-06-04

Very well done; thanks

sonofstone (author)2011-06-02

why c4, why not nitroglycerine?

DustySeven7 (author)2011-06-01

Two things. First C4 is what is known as a plastic explosive. It is extremely stable due to the explosive substance being mixed with the plastic. Fire, heat, and electricity will not cause C4 to explode. It takes a special charge of small explosive inserted into it. This causes a reaction in the C4 that make it explode. That is why you see soldiers insert the little metal tube into it. And Second Silver will not kill a vampire, it will only harm them. The only way to kill a vampire with silver would be to have a silver stake go through the heart.

eulaliaaaa! (author)2010-10-03

Not to be too technical or anything, but C4 needs electricity to blow up. Just saying. Nice Instructable, by the way.

No, it does not require electricity.

Yes, it does. It says in some army field manuals that you can burn c4 and get a strong plastic.

bendog38 (author)eulaliaaaa!2011-05-24

I'll second that.

Soul Crusher X (author)bendog382011-05-24

Sadly, you are both wrong. There are no stabilized, man-portable, explosives that require electricity to detonate. I could go into detail, but this is not the venue for that.

So how else would you detonate it? Fire? If so, all it would do is just burn like fuel and turn into plastic.

Mattrox (author)eulaliaaaa!2011-05-30

Like you say C4 will not explode if on fire(in the second world war some burnt it a safe cooking material).

However putting electricity through C4 will not make it explode. Explosives like C4 are known as "secondary explosives" meaning they need a kick start to explode, for instance some farmers use ANFO(another secondary explosive) to remove stumps(etc.) if they don't have access to blasting caps they use a shot from a high powered rifle to the explosive this achieves the same thing as a blasting cap.

It introduces shock/energy into the explosive somewhat like a starter motor on a truck. 

By the way some blasting caps are triggered by electricity.

Cheers, Mattrox

Hephestus (author)eulaliaaaa!2011-05-03

Could use just a coin cell battery in one end with two metal prongs on the other, when they hit the body, the blood of your target is the conductor setting on the explosive charge :)

eulaliaaaa! (author)Hephestus2011-05-07

True... Salty fluid is a very good conductor.

The nerdling (author)eulaliaaaa!2011-05-24

bit of resistance though

DannytheGreat (author)2009-12-17

I know it is just supposed to give a story to it but shouldn't one of the vials have holy water?

Javin007 (author)DannytheGreat2010-07-16

I would think holy water, liquified garlic, and silver. (Just to cover all the bases.)

jr.tuckluck13 (author)Javin0072010-07-16

Go Hellboy on them. Holy Water, garlic, silver nitrate, etc.

i prefer blade's method. 3 inch silver stakes 12 ga rouphly = 50 cal, so supa bullet. we're talkin like 4-6 inch shells here.

haha this is true

rug (author)jr.tuckluck132011-01-27

isnt the only thing that kills them are wooden stakes?

jr.tuckluck13 (author)rug2011-01-28

not at all. watch the blade series. silver, uv light, stakes, beheading or dismemberment

rug (author)jr.tuckluck132011-05-10

sorry yer i wasnt thinking straight ummm.... uv light works so does stakes and beheading but i've never heard of silver before

actually that's just a misconception by holly wood
the wooden stake through the torso is to hold them down while you decapitate them and burn the corpse.
i still prefer the old ways of burying them upside down so they dig their way to hell tho :]

DannytheGreat (author)Javin0072010-12-27

Im catholic so holy water, silver (in case of surprise werewolves), and the c4 was a good idea

Hephestus (author)2011-05-03

Started making my own version of your shotgun, im making it out of Mdf and copper piping, gives it a bit for weight to it, Great design though

blueberrypieisgood (author)2009-07-28

where do you find tubes like that? I would think christmas wrapping paper but those look too thin...

They come off industrial laminating rolls. Im not sure where you would get them from.

tanis9319 (author)gmjhowe2009-10-08

would pvc tubes work

About This Instructable




Bio: I am a British Graphic Designer and Photographer, when I am not working, I spend my time making an array of projects. I used to ... More »
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