Pew Pew Pew!: Guy Builds Fully Automatic Coil Gun

August 8, 2013


This is the fully automatic Gauss gun that Jason of Delta-V Engineering built in his spare time. What I build in my spare time? LASTING FRIENDSHIPS. Jk jk -- sandcastles.

I just completed my latest project after almost three years of work. It's a home made, portable coilgun that fires in semi-auto and full-auto modes. It fires 7.7 rounds per second, and the steel projectiles are powerful enough to break glass jars and crack apart a laptop screen (about 138 fps, and 11 joules of muzzle energy).

I think I can honestly say I've never built anything in my life that's required any real skill or technical know-how. IKEA furniture, that's about it. And putting together a dresser with picture directions doesn't exactly make you feel like a man. YES IT DID TOO. I felt so good I tore my shirt off! Well, tried to tear my shirt off. I did stretch it out really bad.

Hit the jump for a video of the gun in action.

Thanks Jason, now how about a gun THAT SHOOTS SOUR PATCH KIDS.

  • rnlightle

    It is a good start.

  • Jadis

    I like it. It has computer parts and electro-magnetic stuff in it. Not just springs and triggers. It's hot.

  • Joe Hansbarger

    On one hand, that is a pretty cool bit of home engineering.

    On the other hand, pity such energy was used toward weaponry.

  • Zuma

    look some months ago i was thinking the same. But after watching pacific rim, oblivion, star trek, superman, battleship I'm convinced we need to ressearch in weapponary massively and Im very serious about this.

  • AmselZephlyn

    Oh, shut up you crazy hipster.

  • DeathBotGamma

    Very cool.

  • ozz

    cake is a lie

  • zatoichi

    Why did he have to waste the cake at the end?

  • Hien Son

    The cake is a lie

  • Seriously this is neat, but I'd rather see a heavy backpack slow fire version that packed more of a whollup. Wallup? Whallop? I think spelling is the real issue here...

  • Wallop.

  • dx_xb


  • It was probably a vegan cake, and asking for it. HERESY!

  • zatoichi

    Oh hey, Jaaaaaames. It's whollhoughp. That's the proper spelling.

  • Stephen Casto

    He will get better results if he uses neodymium magnets in (or instead of) his rounds. Also, bigger capacitors will move the the round into the next chamber faster. thus giving him a higher velocity over all. Maybe some flip out foil fins to stablize the rounds as well...

  • DrZanz

    While correct for the most part, using magnetic projectiles raises other issues that need to be addressed such as drag on the frame and timing the fields as well as the need for more powerful coils, that coupled with your bigger capacitors increase power requirements and require higher rated boards and circuitry amongst other things.
    There are reasons why these weapons don't yet exist in any form that means business, let alone for some guy building one in his garage.

  • Matthew Power

    The navy has one that can take out a city. Mounted on a nuclear sub it fires a 3000 pound tungsten rod into orbit which comes back down causing as much energy on impact as a nuclear weapon. Man portable, no, but certainley effective.

  • orion9k

    Comeone.. Quit the sci-fi talk :P

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