I made a Nerf Sten gun

Channel members get early access and video shoutouts: / @mattie_y
Business inquiries: [e-mail]

[@mushroomcraft]

4:00: Me disassembling my pen at school

[@hern01134]

yeah

[@Sojpans]

yeah

[@tomaskolacia8834]

True man

[@alandarkcaster2902]

yeah

[@Someone-yi5gk]

yeah

[@fakeaccount7530]

Sometimes I feel like if there weren't a terms of service you'd somehow make a video where the entirety of some continent was destroyed by a nerf explosion you made for a video

[@camobelt4]

nerf nuke from wkuk

[@IsaacAllwood]

The Australian's have entered the chat to politely request you modify it to make an owen gun...

[@MoraleIsHigh]

All he would have to do is move the magazine well to the top of the blaster. The Owen already has a foregrip too, so don't need to add anything extra there.

[@blendervendor2220]

'struth

[@gekinatracksuit9710]

ok is nobody going to talk about how good his aim is? he doesn't even add any sights to his blasters, and he STILL hits his targets perfectly

[@aydencahoon6557]

Well he made the blaster to not miss

[@antonosogaspador]

True

[@Megaderpus_Maximus]

He knows the tool in its entirety, so he knows how it will shoot.

[@Me-0063]

I remember watching the first vid and thinking “this guy is getting to places”. Your growth has been insane Matt, and you fully deserve it! Very inspiring

[@somerandomguy8732]

The og

[@Ziamex1]

when i'm in a cool nerf blaster competition and my opponent is Matt Yuan:

[@thedolphinboy5488]

The fact that Matt is making stuff that probably functions better than the average Nerf gun is just crazy impressive. Great work dude!

[@satibel]

nerf managers: Matt Yuan was able to build this in a cave!! with a box of scraps!!

[@TeabagDeluxe]

@@adabsurdum5905 Nerf is basically for kids now, until the new pro blasters get released. Teens and adults need to go Pro or go home.

[@scottjs5207]

The hobby's been doing that since the early 2000s. Only instead of janky hardware store builds, reminiscent to what Matt is making on this channel, most is 3D printed... Infact, that vast majority of blaster at large scale events are almost exclusively made by some guy with CaD software and a 3D printer.

[@Papa_Bludgeon]

Matt please make kits of your blasters. I'm sure people would pay for a quality product.

[@c.jishnu378]

Time can truly buy money, I mean money can buy time.

[@GagePenselin-ji6sh]

Yes please! And files!

[@afkman-rp8ns]

I AGRREE WITH THIS

[@minkomaniac4684]

i would buy this in a heart beat

[@skye1491]

Yes please

[@acid324]

Undoubtably one of the best nerf channels on youtube

[@shadow_pidgeon_money_gang]

babe matt posted at 5 am wake up

[@Greg-jr5kr]

2 am for me

[@ghost_vana46]

1PM for me

[@just-there]

EDS time?

[@mjstrawn8426]

5 am for me aswell

[@VaIentineUK]

Brilliant video, as usual. Well worth the wait. I really appreciate your clear and entertaining explanation of your process, even keeping in little mishaps without making them overly dramatic. Hope you had fun working on this project!

[@GAKEI97]

I love the Sten and the Sterling, and this is awesome! Also, yours is more similar to the Sterling given the curved magazine and pistol grip (still great)

[@ledraps22]

i love the action on this thing, seeing the two plungers per pump. sick design and well done

[@recurvestickerdragon]

it's honestly weird seeing it assembled without hearing firearms terms such as bolt, op-rod, objuration, mainspring, etc

[@scottjs5207]

That's cause our firing mechanisms are dramatically different than that of a firearm. Though bolt/bolt sleds are a thing depending on the feeding mechanism.

[@sopadebronha]

He actually reached a point where his nerf guns work just like real firearms. Next is nerf gun that uses gunpowder?

[@cubee4108]

and it's housed in a casing with a primer at the back :troll:

[@ImieNazwiskoOK]

I wonder if adding a spring to the "pusher rod" would slightly help with cycling it. Just something to slightly push it back into the closed position.

[@Random3716]

It might also absorb some of the energy from cycling and thereby decrease long-term wear on the mechanism.

[@MartyR-nm8nf]

12:48 nice aim bro, damn

[@TheLaw2003]

I'm glad youtube is a place where I can nerd out about design and foam flinging with great channels like yours.

[@ofidiotabagista5259]

Congratulations! I can't imagine any way to make it better. Impressive!

[@OmarSharrab]

make a nerf shotgun

[@bud5]

didnt he already do that?

[@CorvusCorviday]

@@bud5 Yes, and no. He made more of a 3-shot-burst rifle, but idk how anyone can make a nerf shotgun unless they model it after the pepperbox

[@Giosuke_Giogashikata]

@@CorvusCorvidaymy friend, have you ever heard of the spring thunder? Or the Yeethammer? They take shells and reload nicer than a pepperbox.

[@gabrielcox3599]

But like with a tube and pump and shoots a lot of stuff out of shells.

[@ajsfeir]

He did

[@luciano12sa]

Finally, a nerf builder who don't have prejudice against real firearms design/engineering. Bravo. I really want one of those now.

[@randomknowledge3116]

A flintlock/frontload nerf pistol next???

[@yesimrealhuman4245]

the first part of this series did that

[@squishysundae2509]

he's alr made a front loading gun!

[@CorvusCorviday]

kzbin.info/www/bejne/pH7Nioisi51njNU

[@abigailmcdowell4248]

I'd love for you to investigate optimal barrel length, A longer barrel should in theory give more accuracy, and depending on how much air is being used to blast the dart could give extre velocity to it, but there would also be extra friction from the extra length? finding the shortest barrel that still gives good performance would make these builds just look a lot cooler and could make for a nice video

[@dogdog357]

I think the volume of the barrel would have to equal the volume of the plunger tube. Shouldn't be too hard to calculate

[@abigailmcdowell4248]

@@dogdog357 so that would lead to the pressure generated by the mechanism to be equal to atmospheric pressure, and so would put as much energy into the dart as possible, but that would require a really big barrel, and as the difference in volume gets smaller you would have significant diminishing returns, AND that's ignoring friction from the barrel, cutting the barrel in half would reduce the energy put into the dart by half (if the barrel starts at equal in volume to the air chamber), but would decrease the friction experienced by the dart significantly. A barrel of equal volume to the main air chamber would be the largest barrel worth testing as going beyond that would definitely reduce performance

[@dogdog357]

@@abigailmcdowell4248 dang that's crazy. Yeah I woke up like an hour abd a half ago my brain ain't working yet

[@DoubleDiamondBack2]

Longer barrel doesn't mean more accuracy if its smooth bore it only makes it more accurate if it has rifling that's why people put a scar on

[@abigailmcdowell4248]

@@DoubleDiamondBack2 rifling definitely does increase the accuracy more than just a longer barrel, but a longer barrel could still contribute to greater accuracy as a result of higher velocity, a reduction in the results of the turbulence of the launching mechanism or any remaining pressure when the dart leaves the barrel

[@minkomaniac4684]

this is so freaking cool! its so primative but also complex, great work nevertheless!

[@vertrix1079]

idk why you dont have a bigger audience i love these videos

[@LemonOperations]

Seeing how this works, then seeing it in action is SO satisfying!!! I wish I had a 3D printer lol

[@christopherjoachimwallat1429]

Matt Yuan basically re-invented a semi-auto blaster all by himself. Excellent design, love it!

[@ABean56]

The sound from th recoil was cool

[@thebfiaid957]

I love matt's blasters ngl. Its not pretty (actl it is but), it doesnt have any tactics, but it has smoothness and reliability. And thats what we need.... I got to try to make this one day.

[@BoarBound]

Awesome job! It does seem like it would be very easy to double feed the rounds if you forgot you already pumped it and theres a lot of wasted energy with a pusher that long too. I love how simple the mechanism is too, in theory, it would be very reliable for a very long time so long as it stays out of the weather lol. Can't wait for your next project though.

[@Me-0063]

Hey Matt, love these build videos! I have to say that I would love to see a video more centered on the design process.

[@unintelligentlifeform3821]

The design of the blaster reminds me of old WW1 experimental semi-auto rifles like the Howell. Love it!

[@OddJobEntertainment]

If you put a small sorbuthane pad on your plunger, you won't need to fear it smacking forward as much. Pretty common mod on airsoft. You may already know about it. Also, if you had the tings of the "fork" mounted to the pushrod, you could have the pump grip move between them in a way that minimizes travel of the pushrod. Like the stops on a mill table.

[@1-_-1234]

w vid just became a member

[@TheOriginalCoolDad]

I don't know if you have any interest in the firearms world, but your thought process on designing and building these blasters is solid. I was honestly waiting for a plug for Sonoran Desert Institute for gunsmithing. No, not a bad thing, just an engineering thought.

[@FuturElon]

The intro was amazing 🤣

[@clevmagyk770]

Very cool! Something I'd like to see next time would be a trigger that isnt rotating around a pivot but instead moving horizontally. In my experience with real and knock off nerf guns, that can make the real ones feel a lot nicer

[@mattie_y]

it alr feels nice

[@AliceAXP]

This has to be the best iteration of the suction gun yet, it nearly reminds me of a grease gun and a bolt action hybrid

[@hungryhedgehog4201]

this seems more complicated than an actual sten gun

[@talbar1411]

Please put a spring to make the grip and all of the sliding mechanism biased forwards. It is pain full seeing you having to over shoot with the amount of power you push it with to finish sealing the barrel and the gun aiming down when ever you do that and almost flies out of your hand. If you added a spring or just a really strong band to bias the sliding mechanism forward it would be much more wieldable and way easier to keep your aim steady. By making it having elastic power you can let it go in the end and it will finish doing the loading your arm would be much less tiered my man.

[@damion9742]

Dude! Freaking amazing. Absolutely love your video's and your creativity.

[@Mysda_]

This is such a cool and simple design. Well done

[@luizfigueira1008]

Nerf, pls hire this guy

[@rb3020]

I love this! you don't see many tube blasters these days in the hobby! glad to see an old dog do new tricks!!!

[@infinidragon]

I think this one is your coolest design yet, well done!

[@ArtySh00t]

I've been wanting a nerf sideloader for sooo long. The only one i found so far was the nerf modulus ghost ops evader or smething like that but it is rare to find nowadays.

[@akagainesy]

Old skool hobby build with some convenience of 3d printing. Pretty cool build, kinda prefer this to the fully 3d printed blasters people do these days

[@CMDR-Cody]

Awesome job with the pump action sten! I'd love to see it chronographed and test different springs and barrel lengths.

[@ivy7642]

This rocks. Can I suggest that you make one that works like a deLisle carbine? It was a bolt action firearm with integral suppressor that was super quiet and fired .45 ACP rounds. Intended for commandoes and the like. It would be perfect for a nerf weapon!

[@TheToaster101]

Peak just arrived

[@AstridDaFox]

I love your videos. Although jet engines and boats and all of those diy's are pretty cool, keeping it so simple like this makes it feel like i could do it and more importantly you don't have to work yourself to death to get content out in a reasonable time. Healthy youtuber is the best kind of youtuber! Keep up the good work! ❤

[@MechanicalMyth]

The "Bah dun dun" sound the blaster makes is just so melodic.

[@CrazedKen]

Yes!! I knew it was the sten, i think it’s British. Next vid could be an extreme bullpup

[@HokuraChan0106]

pump action skewer but sideways. This is literally a creation Sillybutts would make out of thin air

[@raedev]

very ingenious mechanism with the pusher tied to the pump

[@recurvestickerdragon]

imagine if the pump action not only primed the cylinder at the back and drew air into the space ahead of it... but actually pressurized (added to) that air from its own volume, made into a lil 2nd-stage pump

[@faydedfolf]

you should make kits or allow people to buy build files or add that as a member perk, i rly want to build some of these

[@pedro.alcatra]

the fact that he have done a right hand gun being left handed. Makes me thing there are something behind all that to make it in mass production

[@user-bw2fg8lh7y]

Aha! Last video I said it looked like a sten gun and here we are! Gotta love the creativity and pure ✨quality✨ of all your projects

[@archerhewitt385]

Blud really woke up and said, "no good blasters, most pro lines expensive? Fine, I'll do it myself" No hate this guy's amazing

[@mattie_y]

lol

[@TheScrimmIsOff]

Youve inspired me to design my own nerf gun, stealing a couple ideas from you. Loads of thanks and I hope you keep making videos!

[@itsjustmeBryan]

i love this channel

[@SteveRecFPS]

Now I got a challenge for you, make a nerf double barreled shotgun.

[@arrowhead2854]

Its crazy to me how you make better functioning nerf guns, then actual nerf

[@Twisted_Sync]

"It's made of tubes, its magazine sticks out the side, it's a sten gun" yeah that checks out

[@scrib-04]

Bro that catch design is genius. Great work

[@captcade2913]

Bro I’ve been waiting for a gun like this!!!

[@Boydar]

Man you explained the mechanisms so well

[@NerfandStuff1243]

I love your design. Its so perfectly sculpted to and simple. For example your dart pusher was brilliant. Was this blaster the first one you drew on paper or did you go through lots of trial and error?

[@adabsurdum5905]

You should see what you can do with a motorized design like the DZ Thundebolt behind you

[@zixvirzjghamn737]

I would've made it use air instead of a regular spring, though I guess that would've made it hard to make it airtight and not break.

[@m00k61]

Almost at 50k subs! I would love to see you mod some flywheel blasters

[@Aezrt-17]

I just realized you can just half-cock the gun to load multiple darts into the tube before shooting, which would probably block the airflow given the the way the feeding works lol

[@OaksOch]

Man, that thing looks sick.

[@leviwoodward6188]

You shold try making a accurate and simple scope for it😊😊

[@inkycat7167]

semi-auto Sten? HERESY

[@CMDR-Cody]

Its actually pump action. Semi-Automatic actions work the action well Semi-automatically which is to say without having to manually cycle. He could try to make a direct gas impingement or piston driven semi auto however that would take a lot of engineering because I doubt that thing generates enough pressure.

[@inkycat7167]

@@CMDR-Cody You’re right, my mistake, i forgot semi doesn’t mean pump/bolt action

[@malegria9641]

Once again, I, not a nerf fan, have come here just for the remarkable engineering

[@PurpleMushroomHead2]

Awesome sauce, also i love how you threw out the mag at the start

[@doejersey]

Advanced Rainbow 😂 kinda nice seeing old school nerf mods again

[@tituslevico]

This is so amazing!

[@leafcatcher4802]

I really enjoyed thank you

[@mattie_y]

youre welcome

[@LourdesLins-q2u]

Imagine the FPS 🤯

[@sinisterisrandom8537]

Unsure if I would really call this a Sten Gun. There are plenty of weapons that are side magazine-fed. MP-28, FG-42 and Type-100 as examples.

[@plootyluvsturtle9843]

this thing looks so slick

[@b1a1e48]

Love the content, keep up the good work :)

[@Comet-lv3nk]

you should use a solenoid or a gearbox of some sort to make it fully automatic

[@philippe1384]

this gun kinda reminds me of the swedish ' 'Sjögren Inertia' ' shotgun. Great work 👍

[@dacomputerlives8264]

would love to see a dust cover/casing build for this thing

[@jangschoen1019]

The printer gag continues!

[@squishysundae2509]

you should make a sight for a future project!

[@akidafloof]

I like how stupidly simple you've kept your channel thumbnail and most of your videos over your time on youtube. You explain everything easy enough for anyone with basic knowledge about how physics and machines work to understand, and don't oversaturate every video with ear destroying music and overcomplicated art, while also keeping the content from turning into what I could only describe as "there is a video in my ads" like some people do. Love the content, keep it up. Edit: Fixed some bad grammar and wordplay on my part.

[@TDOPB]

I look away for 5 minutes and he's gone from making his own nerf guns to making his own extremely high quality nerf guns. If you keep evolving at this rate, you'll have a firearms company called "Yuan Armaments" or something like that before the end of 2025.

[@basscat9952]

You can reduce the distance the parts move by using a gear reduction with a racked gear and make it only go back the necessary amount, this would likely reduce the chances of jamming the gun if you fired it fast, since it is both traveling a shorter distance, and probably moving slower, I do not know.

[@mattie_y]

i considered this but ultimately decided it was not worth the additional complexity

[@basscat9952]

@@mattie_y It is another point of failure and would need specialty parts, as 3d printed gears are not known for their durability. I would have probably opted for the higher fire rate with extra reliability even if it made the gun its self more complex, however it is still a very very simple weapon, and it may have maintained a similar part count to the current version you have. Thats basically all I could suggest for the weapon, otherwise it is a pretty robust system, though I do have a VERY stupid idea on what to do with all that extra length. It needs more magazines, and it needs to be able to feed multiple rounds in at the same time, making it a shotgun is a horrible idea, however. . . . five rounds in that general direction sounds nice.

[@notdigzzi]

Now we need a Owen gun

[@alexanderschachner8587]

I wonder If you could make a tube-fed-lever-action version? Great Video

[@locke4642]

Keep this up and you're going to get a nice SDI sponsorship

[@Matt3DMaker]

What a brilliant design! Simplicity is really a challenge to design! Do you sell the files?

[@adammoon2959]

FPS, FPS, FPS.

[@kellyd6195]

I teach physics and these are very interesting. I’m not very familiar with Nerf guns. I am curious, how consistent are the shots? In physics, I’d like to have something that can consistently shoot at the same velocity and accurately. We do several types of projectile labs and demonstrations. My students do a lab where they must determine the velocity of the projectile, then using that information to determine the flight path of the projectile by placing hoops for the projectile to fly through and a target to hit. They also do a “monkey and a hunter” lab where they shoot a projectile and consistently hit a falling object. Do Nerf guns shoot at a fairly constant speed? Are the flight paths consistent (are there rifled Nerf guns)?

[@mattie_y]

it varies

[@vedranlucev1837]

The darts themselves are the major variable. They are soft and squishy and not perfectly symmetrical and the foam degrades over time, so everything else being equal, the same dart could fly out with up to a +/- 20 feet per second variation between shots. Nerf blasters are usually not rifled but you can buy or print "SCAR" barrel attachments (String-based Auto Centering and Rotating) that put a spin on the darts for better precision, but once again the velocity is not consistent.

[@jakesterrett3755]

Great video man! Noob question, if one wanted to make a given blaster more powerful, lets say this one. Is spring power more important or the volume of air that is compressed?