Second Note-  I know I look pretty shaggy in the video. I had just finish building, hadn't shaved in a few days and was too exited to show off my gun to go make myself look better.  Also, I apologize for fliping the bird.  I lost my index finger in a table saw accident at work so I have to point with my middle finger. 
  Hello Nerf enthusiasts and Cos-play actors, Makers, Movie lovers, Freaks, Geeks, and Mystique's.  Welcome to instruction in the building of a functional Nerf version of the auto-shotguns used by Mouse in the movie The Matrix.  Ever since I was introduced to the art of Nerf modding, I knew this was something I had to do as these are my favorite movie guns.  Although I could have simply made replicas of these guns, the fun part for me was figuring out how make a working version.   
  These guns were custom built for this movie by John Bowring, a builder of weapons used in movies.  If you've ever seen a movie gun that made you say "wow, that's cool..." , chances are that this guy built it.  These are cam driven, 25 round, rotating drum, automatic shotguns.  What this means (I'm pretty sure anyway) is that the trigger activates a motor, located at the top of the gun, which turns the drum.  Behind the drum is a spring loaded firing-pin that strikes each shotgun shell as the drum turns.  Firing rate is determined by the speed of the motors that turn the drums. The genius of these guns, besides how awesome they look, is the simplicity of the whole system.  Our versions of these guns are, by comparison, much more complicated; but as you can see, very do-able and worth the time put in to building them. 
  It was both a blessing and curse that these guns were only onscreen for a few seconds. You only get a visual of the front half of the gun, so what's the back half supposed to look like....?  Answer: Whatever I want it to look like, or more accurately, whatever I need it to look like. The most difficult part of this project was incorporating the automatic mechanism of the Nerf Vulcan into the body of the Nerf Firefly, kind of like Dr. Frankenstein's monster.    
  Here's a quick overview of what you will be doing to complete this project.  We will be removing the automatic firing mechanism from the Nerf Vulcan.  Redesigning the body of the Nerf Firefly to accommodate  this mechanism.  Building a trigger to activate it.  Building a drum to house the ammo chain from the Vulcan.  Finally, relocate and build a housing for the light that was in the Firefly.  Simple, right?

  Take your time with each step and focus on the details, making everything fit together smoothly, before moving on to the next step.  I will say that having a 3D printer would have made building this gun much easier and more accurate, but I don't have one. 
  This project took me a while and, although the focus was not on making an exact copy, is very involved.  It does require some electrical and mechanical know how.  Being an unconventional build, some of the way things fit together will be up to your judgement.  I will be guiding you through the process of constructing the pieces to the best of my ability and hopefully in the end, you will have a truly unique Nerf weapon.

Step 1: Tools and Supplies

Firefly gun, and Vulcan gun


- drill, large variety of bits, one 3/4" spade bit and one 5/8" spade bit, and one 1" spade bit
- sodering iron, solder
- hobby knife
- jig saw
- dremel
- wire strippers
- screw driver
- compass
- pencil
- hot glue gun, glue


-4"  PVC
- bondo
- spraypaint
- super glue
- wire nuts
- electrical tape
- masking tape
- fine sand paper
- 10" foundation tube
- 1/4 plywood
- screws
Does it shoot ?
<p>Yes it shoots, but not as far as it should. It's very difficult to the proper alignment of the bullet shells and the motorized compressor. I'm still working on getting a perfect fit.</p>
Well done on winning the Props comp, the gun looks ace.
Thanks very much, it was a fun build. I'm pretty surprised that it won; surprised but proud.
AWESOME!!!! FYI you know you can buy a vulcan chain, right? thats saves about 20 bucks. KEEP IT UP!!
Nice =) I've had several ideas like this before. One idea was putting a vulcan in a deploy and having the chain feed through right above the handle. I just never got around to destroying my deploy. The other idea was to put a stampede in a rayven, I'm not even sure if that could work =/
Thanks. Yeah it's fun to consider all of the possibilities that, with some creativity and determination, could be made. It's really hard to make the first cut into a perfectly good gun though, lol.
Yeah I definitely agree it's hard to cut up a good gun. Hmmm...under barrel stampede sounds like a good project,if only it was cheaper =P
So dang cool but I'm not destroying my beloved nerf gun lol
Yeah I know! I bought both of these guns with this in mind; but when I got them, making the first cut into the Firefly was REALLY hard to do.
Joking really!!!
I thought so but hey, there probably are 6 or 8 people who haven't seen the movie so I couldn't be sure.
That's sick!!!
Thanks a lot!
That is awesome!!!!
Thanks, I really appreciate it. I'm glad you like it.
Wow, I am really, really impressed! A few question, though: <ul> <li> Have you heard of li-ion 14500 cells? They are 3.7V and about the same size as AA batteries. You could have probably fit three of them where the the old battery compartment was. <li> How well does your paint stick to the trigger? You don't seem to have sanded it. In my experience it seems to be coated in some way and paint seems to scrape right off, if I don't sand and prime it first. <li> Why didn't you shorten the security push buttons? </ul> Awesome job, I now how long it takes to get a perfect finish with filler and yours is really impressive.
Thank you. I've been keeping track of all of your projects, which are all awesome, so your compliment means a lot. <br>To answer your first question, yes I was made aware of the li-ion after I finish the project and you're right, they would fit right in there. Maybe I'll do that at some point. <br>Second question, I'm really not into playing Nerf war so it's not getting overly used. I really just built it to see if I could. I was a painter for 15 years so I know the routine pretty well, it was mostly sanded, primed and then painted..... Mostly, lol. I have descent luck with the body of these guns, but the trigger always seems to rub off anyway. Knowing that I think I just kinda cheated a little on the trigger (shhhh....don't tell anyone) <br>And the security buttons, the ones that activate the motor right? I left those the stock length because I wanted to be able to activate the flashlight with the trigger even while not shooting. Just pull the trigger back a bit and the light goes on. In order to make that happen there needed to be more trigger movement. Does that make sense? I mean, did I explain it well enough? <br>As for the filler, thank you very much. Like I said, I was a painter and have a lot of experience with stuff like that. <br> <br>B, it sounds like you really looked through it all pretty well, very cool. It was very hard for me to put everything into words that made sense; if you have any suggestions on my writing please let me know, as well as improvements or ideas for the gun itself. <br> <br> Thanks again, Matt
Legen... wait for it... DARY. Legendary. <br> <br>I will hopefully have several entries into this contest, but I'm still going to vote for yours.
Thanks man, glad you like it. I'll be sure to keep an eye out for anything you might enter. <br> <br> Have fun and thanks again.
Is that the terminator moive?
I'm kinda hoping this is a joke; but if not, no that is the Matrix movie.
I looked at the picture from the movie and I noticed there was no finger guard in front of the trigger yet on the DIY version there was. Still it is pretty awesome and I would love to own one.
Yeah I saw that too, but that trigger guard holds important parts so I had to leave it in. Ya gotta do what ya gotta do. Thanks very much for checking it out. If you want one you should give it a shot, I can help with any questions you might have.
This gun is actually a Maville Gas Gun, which was originally a semi-automatic gun that launched gas cartridges, designed for riot control in prisons. It used a spring-loaded cylinder, where each chamber had its own firing pin. You had to wind it up before you could shoot it. If you were to load a 12-gauge shotgun shell in it, it would just blow up.
That maybe. This is where I got my information: http://www.imfdb.org/wiki/(The_Matrix)_-_Mouse's_Shotguns <br> <br>
ptetty awesome!
Thanks, glad you like it.
oh my good golly gosh....i would pay you if you could figure out how to make this into a workable paintball gun.
I'm glad you like it. Turning it into a paintball gun poses an interesting challenge and I already have some ideas. Thanks for inspiring my next project. I will let you know how it turns out, and if it's successful I will post a how to for you.
hmmm you could do a drum setup with the painball gun. <br>fire 3 (or 4) rounds per trigger pull..... sounds like fun to me!
I love this. When i find a way into the matrix, I'm bringing these bad-boys with me.
Awesome man!
Thanks! I'm glad you like it. It's funny that you noticed VINCENT; my next nerf gun is from that movie. Anyway, have fun and thanks again... <br>
Great movie, great scene, and great Nerf gun mod. I've got my own entry in this contest, but you can still have my vote. This is super cool. Well done!
Yeah, I always loved that scene. Anyway thanks a lot, I'll be sure to take a look at yours aswell.
Very cool and nicely done. For the batteries I would sugguest a 3S 2200mAh Lithium Polymer battery. It is 11.7v and much smaller. Here is a link to a good inexpensive battery. You will need a lipo charger to use it.&nbsp;<a href="http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=11911" rel="nofollow">http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=11911</a>
Thanks very much. And I will check out that battery, sounds like it might be perfect.

About This Instructable




Bio: Me? I just love building this, fixing that, and on the rare occasion creating stuff. I really enjoy repurposing things.
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