The possibilities are limitless when it comes to Lego, and that’s why you can make a functional machine gun out of it.
What’s the most complicated structure you ever created out of Lego blocks? I remember being six or seven and inordinately proud of a tiny, cubed house I’d rendered in primary color blocks, complete with various blocks that served as household appliances, disproportionate meals or family pets. In my wildest dreams I would never have tried to construct something that moved, let alone something that worked as a rudimentary weapon. How many six year olds do you know who are capable of that?
▼ @zuzuruniyaniya is not a six year old, but he’s managed to make an automatic weapon anyway (translation below)
ついに!ええ、出来ましたよ!!
— ずーずる (@Zoozle_Gewehr) October 21, 2018
レゴで全自動の機関銃が完成いたしました!
会心の出来なので、是非ご覧あれ!! pic.twitter.com/iqiJzodqQX
“Finally! I finished it! I completed a fully working automatic machine gun made with Lego bricks! I’m really pleased with myself, so please watch the video of it in action!”
In the video we see @zuzuruniyaniya prepare the gun by draping a sheet of specially prepared Lego “bullets” into place, and then fires through the whole clip.
The bricks make an immensely satisfying sound as they’re fired from the gun, in part due to the powerful noise of multiple elastic bands being let loose in sequence.
▼ “The elastic bands are wound tight around the small Lego bullets and secured to the belt. The action of being dragged through is what causes the shots to fire!”
輪ゴムをレゴに通したものをベルトに引っ掛けて
— ずーずる (@Zoozle_Gewehr) October 21, 2018
射撃しています! pic.twitter.com/sS7LNOZ6H2
In another video he showed a close-up of the process, so everyone could better understand how to create a deadly plastic weapon in their own home.
▼ That’s a lot of work for just one round of bullets. (translation below)
https://twitter.com/zuzuruniyaniya/status/1054655118547681280”Here’s how the mechanism works on that thing I posted before.
I know from spending time in the past watching other creators’ Lego videos that there are parts of building a Lego gun that are really tough to understand, and also tough to explain. I’d like it if as many people as possible could understand this process, so don’t hesitate to ask me if you have any questions!”
In the video he very delicately entwines an elastic band around the peg securing each row of bullets. After twisting it in the middle, he loops the other end of the band around top-most layer of the “bullet” block, right on the seam where the blocks connect. He then demonstrates that if the bullet block is pushed at its seam, the elastic band will send the bullet block flying forward.
He shows the block that initiates this function, a red long block that will be pushed along the side of the bullet “chambers” and sets each bullet loose by popping the seams upward.
A very fascinating device, although there aren’t explanatory videos for the case and body of the impressive item. You’ll have to engineer the rest on your own, kids!
The Internet was delighted with @zururuniyaniya’s handiwork. When begged for alternate angles to show off this cool contraption even further, he happily obliged.
▼ “Agh, sorry, the video didn’t turn out great! Forgive me!”
なかなかいいの撮れませんでした!ごめんなさい!
— ずーずる (@Zoozle_Gewehr) October 21, 2018
これでご容赦願います pic.twitter.com/ZvasEE9fGc
▼ “Here you go, here’s how it looks [in full]!”
了解!
— ずーずる (@Zoozle_Gewehr) October 21, 2018
こんな感じです! pic.twitter.com/LQh9IMuqSJ
This Lego enthusiast is one to watch for future innovations. We can’t wait to see what he comes up with as a second act, seeing how we recently had a spurt of successes in the papercraft world from one of his contemporaries.
Source: Twitter/@zururuniyaniya via Togech
Featured image: Twitter/@zururuniyaniya

This Lego samurai castle would be amazing even if it wasn’t also an awesome pop-up book 【Video】
Nintendo announces new Lego Luigi set, and Japan gets it first【Photos, video】
It’s a-me, a Lego! Nintendo and Lego to collaborate on a new project【Video】
Pre-orders now open on Amazon for new, amped-up Lego and Super Mario collaboration!【Video】
The Lego Super Mario set is way more awesome than it needs to be【Video】
Foreign tourists in Japan will get free Shinkansen tickets to promote regional tourism
Saitama is home to the best strawberries in Japan that you’ve probably never even heard of
Survey finds that one in five high schoolers don’t know who music legend Masaharu Fukuyama is
Adorable Totoro acorn key holders come with a special guest hidden inside[Photos]
New smartphone game turns car models into anime girls with model-worthy looks
Shinjuku izakaya’s all-you-can-eat-and-drink plan is one of Tokyo’s best secret cheap eats
Problem solved: How to open a Japanese convenience store onigiri rice ball【Pics and video】
A visit to the oldest Yoshinoya chain in Japan for one last beef bowl before it closes for good
Japan’s oldest Yoshinoya branch reopens in a new location: Tokyo’s brand-new Toyosu fish market
Kura Sushi wants to see you smile for a chance to win prizes
The 10 most annoying things foreign tourists do on Japanese trains, according to locals
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Naruto and Converse team up for new line of shinobi sneakers[Photos]
Is Sapporio’s Snow Festival awesome enough to be worth visiting even if you hate the snow? [Pics]
Japan has trams that say “sorry” while they ride around town…but why?
Tokyo Skytree turns pink for the cherry blossom season
Sakura Totoro is here to get spring started early with adorable pouches and plushies
Poop is in full bloom at the Unko Museums for cherry blossom season
Shibuya Station’s Hachiko Gate and Yamanote Line stairway locations change next month
Japan’s new “Cunte” contact lenses aren’t pronounced like you’re probably thinking they are
Japan’s newest Shinkansen has no seats…or passengers [Video]
Foreigners accounting for over 80 percent of off-course skiers needing rescue in Japan’s Hokkaido
Super-salty pizza sends six kids to the hospital in Japan, linguistics blamed
Starbucks Japan unveils new sakura Frappuccino for cherry blossom season 2026
Take a trip to Japan’s Dododo Land, the most irritating place on Earth
Is China’s don’t-go-to-Japan warning affecting the lines at a popular Tokyo gyukatsu restaurant?
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
Japanese Lego fan builds a miniature, functioning conveyer belt sushi restaurant 【Video】
Tokyo Dragon Quest ad made entirely with Lego lets commuters remove blocks to defeat the bad guys
Shut up and take my money: Awesome handmade Lego video game art on sale now
Japanese Lego master makes incredible sculpture of diabolical Dragon Quest villain【Pics】
Japanese inventor crafts homemade squirtgun that blasts thick plastic to pieces【Video】
Japanese self-defense store CEO shows his dedication as he demos products on himself【Video】
Japanese genius invents a machine just to help you get out of unwanted video chats【Video】
Monkey Majik and Taiiku Okazaki team up for bilingual Japanese-English track【Video】
Fed-up Japanese city hires a hawk to chase occupying army of crows away from city hall【Videos】
Japanese baseball teen refuses walk after getting hit by pitch, follows up with home run【Video】