Nerf Sentry Gun


As a fan of pretty much anything that shoots a projectile, I found this interesting. A Nerf Sentry gun is nothing new. Ever since Hasbro came out with the N-Strike Vulcan EBF-25 Nerf fans and college students have been mounting them onto computer controlled gimbles.

The truly outstanding aspect of this build, is the targeting and IFF recognition. You can program the computer to recognize a design and not shoot at it. So you can dress up as Colonial Marines and pretend all your enemies are acid blooded aliens. Very clever indeed. Now mount a M60 or a Shrike to it haha.




A big thanks to Whale Oil for sending this in to us.

Nicholas C

Co-Founder of KRISSTALK forums, an owner’s support group and all things KRISS Vector related. Nick found his passion through competitive shooting while living in NY. He participates in USPSA and 3Gun. He loves all things that shoots and flashlights. Really really bright flashlights.

Any questions please email him at


  • Gyufygy

    That’s pretty awesome! Modifying Nerf guns is something I keep wanting to get around to, but getting into actual firearms sidetracked me. Snazzy stuff.

  • WaltherJJR

    What, no live fire exercises??? Anyway…it is truly amazing. Set it up for kids that come home late on a school night.

    “Be home by eleven or else!”
    “Or else what?”
    “You’ll see….”

  • Graham 1

    I love stuff like this. I own real firearms and Nerf guns and find them both fascinating (real guns definitely more so).

    The evolution of Nerf guns from single fire spring and air guns, to multi-shot, to full autos, to guns using standardized magazines and accessory rails almost mirrors all of firearms history, just compacted into two decades

    • Porty1119

      Nerf rifles were my first introduction into firearms-like firing mechanisms. I own one that happens to act a lot like a straight-pull AR, only with some sort of sleeve mounted to the bolt carrier instead of a charging handle. Fun stuff.

  • ColaBox

    Damn wish I had this when I was young! I had fun with the ones you had to “charge” for every shot, I would have lost my mind with this.

  • Patrick Henry,The2nd


    This looks really cool. I’ve always want to get one of those guns and do something like this. She saved me the time of designing it!

  • This is going on the list of things I want, but the wife says no… This is epic.

    • gunslinger

      better to ask for forgivness than for permission

  • Isaac FluffyWolf Rader

    I do love sentry guns…

  • noob

    hmm. I like the image recognition feature. It reminds me of William Gibson’s “ugliest t-shirt in the world” that has a QR code on it that tells government CCTV “I am a special operative, please delete all footage containing this QR code”

  • noob

    hmm. one improvement – unify all the power supplies into one wall plug power supply that supplies 5V (Arduino), 6V(servos) and 12V(gun itself) using an ordinary ATX pc power supply.

  • noob

    will the BATF care if you mount a shrike on a platform like this? Would a servo actuating the trigger with one pull per detection event be considered an “electronic full auto trigger”?

  • WV Cycling

    Walter White needed one of these…

  • hhhhhh

    Looking forward to automated drones that can kill targets they chose without human input.

    That’l be just great

  • Mark H

    Just to cool.