---
title: "We’re Obsessed With This Laser-Sighted Gun That Shoots Knives"
description: "A laser-sighted, automatic gun that shoots knives with deadly accuracy -- the perfect weapon for a hypothetical zombie apocalypse?"
date: "2022-09-12"
modified: "2022-09-12"
authors:
  - name: "Victor Tangermann"
    job_title: "Senior Editor"
    link: "https://futurism.com/authors/victor"
url: "https://futurism.com/the-byte/gun-shoots-knives"
categories:
  - "Robots and Machines"
tags:
  - "the digest"
  - "weapons"
  - "YouTube"
  - "zombies"
---

# We’re Obsessed With This Laser-Sighted Gun That Shoots Knives

![A laser-sighted, automatic gun that shoots knives with deadly accuracy -- the perfect weapon for a hypothetical zombie apocalypse?](<https://futurism.com/wp-content/uploads/2022/09/gun-shoots-knives.jpg>)
*\<em\>Image: Quint Builds via YouTube\</em\>*

## Knives Out

The father-and-son duo behind the YouTube channel Quint Builds came up with a weapon that's equal parts terrifying and awe-inspiring.

In a [recent video](<https://youtu.be/-BKEZbYOMpI>), the pair collaborated on a laser-sighted, fully automatic, knife-throwing machine gun — and we're having a hard time deciding whether we should be impressed or run the other way.

https://www.youtube.com/watch?v=-BKEZbYOMpI

## Deadly Slinger

The construction of the knife gun was a long and arduous process, fraught with trial and error. The duo rigged up four servo motors attached to two belts to form two parallel knife-slinging mechanisms.

By running a 3D-printed, knife-wielding sled between the two belts and timing the top belt to move slightly faster, the team was able to both spin and launch the knives at just the right angle.

A clever electromagnetic system allowed for the knife to be released at just the right moment, spinning it around its own axis roughly 360 degrees to impale targets with a satisfying thud.

## Zombies Beware

A LIDAR-powered knife reloading system is the cherry on top, allowing multiple knives to be shot at a target in quick succession.

"It's accurate enough I have to spread \[the knives\] out on the target so \[they\] don't hit each other," said Quint senior in the video.

So there we have it: a handheld death machine that could be the ultimate survival tool in a zombie apocalypse — or at least a great way to entertain friends.

We'll let you decide on that one.

**READ MORE:** [FULL AUTO Knife Throwing Machine!](<https://youtu.be/-BKEZbYOMpI>) \[YouTube\]

**More on YouTube engineering:** *[Madman Invents Robot Suit That Lets Snake Walk With Legs](<https://futurism.com/the-byte/snake-legs-robotic-exoskeleton>)*

## Author
I've been at Futurism since 2017, where my role has evolved to encompass design, writing, and increasingly editing. I've always been fascinated by space exploration and advanced transportation, which I've leaned into by interviewing luminaries in those fields while closely following the dimensions of policy and regulation that allow next-generation projects to succeed -- or, sometimes, to fail. I'm also keenly interested in the effects of generative AI on society, policies, and democratic institutions, as well as clean energy, physics and biology, and the vagaries of tech leadership. My work for Futurism has been cited by publications including Ars Technica, Gizmodo, PC Magazine, Jalopnik, Fox News, and the New York Post. I spent my childhood living in locations including Manila, the Philippines, and Geneva, Switzerland, attended McGill University, and now live in Toronto, Canada. Before Futurism I worked at AskMen and a small photography studio. In my free time, I'm an avid gardener, foodie, and craft beer lover, as well as a maker of artisanal hot pepper sauces. I have a magnificent dog named Freida.

### Author social links  
[Bluesky](<https://bsky.app/profile/vtanger.bsky.social>)