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markserbu
United States
Приєднався 25 чер 2007
Hi, I'm Mark Serbu, lifelong gun nut, degreed mechanical engineer, gun designer, founder and owner and president of Serbu Firearms, Inc. I'm also a pretty decent self-taught TIG welder, machinist, CNC programmer and assembly guy. I'm trying to teach the basic principles of firearm design and engineering (which apply to ALL product design and engineering), including mechanisms, materials, heat treat, stresses, math, etc. Thanks for stopping by!
Grease Gun Resurrection Part 1
Demonetized before it even went live. Oh, well...Enjoy. On me! Folks, I've been wanting an M3 (Grease gun) for years, and finally the parts sets have become available! Well, the were available for a day or so and then completely sold out. Anyway, in this video I show you how I go about welding a torched-to-hell receiver back together...enjoy!
Переглядів: 39 313
Відео
RN-50 Barrel Test Gun!
Переглядів 21 тис.28 днів тому
A look at the RN-50 Barrel Test Gun. This was made from a chopped-down RN-50, and was basically the quickest way to get shop-made pistol barrels tested. Also in this video is a bit of product-whoring for the new Olight Osight. This is a really awesome piece of kit (as the Brits say), and the price is insanely cheap! Check it out at: olight.com/osight Last, if you need IT services, check out my ...
Rifling 5!
Переглядів 19 тис.Місяць тому
The long-awaited rifling video! I will be doing more rifling videos in the future, including ECM rifling. But for now this is what you get! Actually, my next rifling video will be a short, where I show you everything you need to know in less than 60 seconds. Hell, maybe even 30 seconds. Cheap, Chinese rifling buttons, grease, and bashing the button through the tube with a hammer. It will be ugl...
TEC Pistol!
Переглядів 405 тис.Місяць тому
Ok, we still don't know exactly what to call this thing. It's a modern take on the classic TEC-9, and the awesome thing is that it's caliber switchable between 9mm and 30 Super Carry! Former Kel-Tec head engineer, Toby Obermeit, pays me a visit and brings along his new baby. It's a standard blowback firearm, but it's made using technologies that didn't exist when its 1980s ghetto-blaster namesa...
Beretta 418 Pistol
Переглядів 26 тис.2 місяці тому
This is a really cool little .25 ACP pocket pistol made by Beretta from the 1920s to the mid-1950s. It's got classic styling and was made with old-school methods. I got this one for a deal, fixed it up and fired some rounds. Check it out!
Stamping Again....Again!
Переглядів 94 тис.2 місяці тому
After 2 long years I finally do the final stamping on the Diabolus upper receiver! The results were not perfect, but they're very close...I'm pretty psyched!
30 Super Carry!
Переглядів 42 тис.2 місяці тому
Around a year ago, I'd been looking for something like a .32 ACP magnum but somehow completely missed the fact that the 30 Super Carry had been brought out an entire year before! Here I discuss a few of my thoughts on what I hope will turn out to be the ultimate carry round.
.50 BMG vs Termite Mound-Extended Version!!
Переглядів 16 тис.2 місяці тому
When in South Africa, kill termites! I'll admit it...this video was all about indulging my inner, destructive kid. Like a commenter said on my other gun channel, "The kid with the magnifying glass and the ant hill has grown up!" Funny analogy and completely true. I DID spend time burning ants with a magnifying glass as a kid. Anyway, I was surprised how little damage was done to the mound with ...
3D Printing: Ender vs Bambu...sort of.
Переглядів 4,5 тис.3 місяці тому
Ok, not really a detailed shootout between these two popular brands, but hopefully at least some food for thought for those of you wanting to get into 3D printing. Amazon US Ender 3 V3 KE 10%off discount code: 10NCZ94M Valid until March 20th, 2024 www.amazon.com/promocode/A2XS91JN55H6IO?maas=maas_adg_5E6AC8493FA51919F21ED953F59846A6_afap_abs&ref_=aa_maas&tag=maas Amazon UK Ender 3 V3 KE 10%off ...
The RN-45!
Переглядів 150 тис.4 місяці тому
In case you can't guess by the "RN" in the name, this is yet another Royal Nonesuch creation. I make fun of him a lot in this video, as usual, but this is actually a pretty decent gun. And one really interesting thing is that I saw something on high-speed video that I've never noticed before! That alone will make watching this video worthwhile for my fellow gun-building nerds. Enjoy! If you wan...
The JLC-24 Rifle!
Переглядів 80 тис.4 місяці тому
Wow...check out this rifle! Amazing what CAD inexpensive tools cleverness can produce!
M12AR Shotgun!
Переглядів 54 тис.4 місяці тому
I'm amazed at how this gun is so incredibly cheap! I wish I could talk about how few "doll hairs" you have to exchange for this thing, but then I'd get demonetized, get a channel strike, etc. With a little research you can find out about this bargain sporting/home defense/plinking shotgun!
M240 Action
Переглядів 9 тис.5 місяців тому
Guys, I uploaded a version of this video here around 8 years ago. Now I've slightly re-edited it and I'm hoping you can help get my views up on my other gun channel by watching some videos over there. Here's a link to this one: ua-cam.com/video/qIq21yUMqAs/v-deo.html Thanks!
Saturday Night Beer Video
Переглядів 3,3 тис.5 місяців тому
It's a little about beer, a little about 3D printing and a little about something else unmentionable. But at a minute and 37 seconds, at least you won't be wasting much time watching this! Hope your week went well and you're having a great weekend!
1911 Madness!!
Переглядів 73 тис.5 місяців тому
Happy New Year! Who is a fan of the 1911? I've got a nice starter collection of this awesome pistol....check it out!
Designing a Gun in Norway - Overview
Переглядів 79 тис.11 місяців тому
Designing a Gun in Norway - Overview
are you AC welding? or just the sound?
I love my Grease gun
Remember kids...the govt will.give or sell these to almost anyone in other countries but will chop slice or torch them up to keep you from getting something your taxes paid for in the first place.
It looks similiar to the Daiwoo USAS 12 semi auto shotgun whitch is classified as an NFA DD.
Thank you Mark!
Nothing like getting smacked with the yellow dollar sign while uploading! They can groom kids but don't you dare post informative , helpful info on guns.
AWESOME VIDEO <3
Great video
They are a blast to shoot. They cycle super slow and with the suppressor, you can’t quit smiling. Your buddy Ken has one.
Hey Mark, do you offer any type or brand or model of any gun for building any weapons comprising of an 80% parts kit, or any other complete parts kits for assembling any guns? Any kits whatsoever? I remember a video you posted a couple years back regarding your GB 22 80% parts kit, and your desire to develope and sell more parts kits of various other gun types to offer for sale. Did any of that ever come to bear fruit?
Already unsubscribed in the first two minutes
Why is that?
this comment's kinda gay, not sure why you're mad about pride month.
Good, bye bye.
This isn't a runway... you don't need to announce your departure. JUST GO.
Goodbye!
Apparently you and I own the same bead blasting cabinet.
Did your kit come from Bowman’s?
Just a question one gun nut to another ...is there a free or cheap simulation program that could be used to develop gun designs
As a mechanical engineer, although not a gun designer, I can give you some insight if you want to learn how to design guns - it helps if you know how to calculate forces, pressures, impulses, etc. by hand. It helps if you have a good intuitive understanding of kinematics/how things move behave/interact with one another. You should have good materials knowledge of why to pick certain steels or aluminium alloys above others, and in what locations on the gun you need to use better performing materials. You should know how things are manufactured and how much certain operations cost if you want to go in to production. What parts can be cast, what parts need to be milled, where you can use bent sheet metal, aftertreatment, etc. These choices may depend on cost or the forces and pressures and criteria the parts will have to withstand. For an instance, you dont want to cast bolt locking lugs as cast steel is more porous and prone to cracks after many load cycles, than a milled bar of steel. You may also want to be aware of how radius choices affect stress concentrations and the risk of cracks in your designs. Other than that, a good CAD software such as Autodesk Inventor or Solidworks or even Fusion 360 will work for the modelling part, although you may as a first step just want to draw your concept on paper, as that will be way quicker if you are unsure of what you want to design. If you after having a CAD model want to get more advanced, and to be safe (more safe than with hand calculations), you should do some FEA (Finite Element Analysis) of your design to see that the stresses and so on in your parts to not overstress your materials. There are basic FEA modules in most CAD software, that are probably best to start with as most people cant afford professional FEA software licenses on their own, such as ANSYS, Abaqus, LS-DYNA, etc. But performing FEA calculations also require a lot of know-how and can easily be performed wrong or be interpreted badly by someone who is inexperienced. -In short, you need to have good general engineering knowledge if you want to design gun mechanisms as they are moving systems under very high pressures. //J
@jay_no3 i basically know materials and some about heat treatment .but the rounds i am most interested in designing as somewhat of a newbie would be lower pressure rounds . The reason for wanting a simulator is so tge designs that run through my head for guns and other machines dont keep me up at night wondering about clearances and angles .the pressure with quality materials and low pressure rounds will take care of itself , in addition to carefully looking at spent rounds for signs of overpressure. So safe to say that when i find my limits and im sure i will i wont be close enough to matter
@@stevebelcher1527 Im guessing you dont have an engineering background, since the "simulator" youre asking for actually is FEA software, like i just mentioned. I dont recommend you to design anything unless you know what youre doing. However, there is Simscale online which is a cloud FEA solution. There are also free multi body simulation motion softwares such as FreeDyn and Solvespace which I found by Googling.
@@stevebelcher1527Forgotten Weapons just reviewed a book with a lot of information on designing in it.
There's even a overlap with the Glock owners and gays
Not to mention those 1911 enjoyers. Vibes are so maanly. In case of misunderstanding: it's meant to be a joke
The _Glock_ was the first gay gun.
Can you build us a semi auto closed bolt version?
An Aero Survival Pistol would get you close.
cool. The M3 is an interesting firearm.
Wd40 works magic when tapping aluminum. Chips dont get gummed into the teeth.
I hope Mark's not goung to tell us he's _transitioning._
Some kind of hair plug surgery?
@@hxhdfjifzirstc894Britney Speers wig. 0:11
We have nothing in common.
Huh. Gay guys and gun nuts. Well, like gun guys, I also like 12 inches of penetration.
Where do you find things like this?
Interesting piece of history, never seen one in person only in movies. Also that they were stamped out of metal is crazy. Seems as if those would have lots of recoil also. 👍🏼
yeah, they do.
Looks almost like my collection of Colt 1911’s !
Painful to watch you using a cutting wheel to "grind"
Made me facepalm. A sanding disc or a medium grit stone would've done that job in a minute.
He knows, pretty sure he even said he didn’t feel like grabbing the right tool lol
That was an obvious job for a bur, or diamond bur. Oh well... if a dremel is what he has, then he'll make it work.
@hxhdfjifzirstc894 a bur can be aggressive with slag if it let's go easy
Did you put your threaded hole in the wrong end of the mandrel? Great video, and an even better project. I'd give my eye teeth and a molar for a grease gun. It's my favorite sub.
Funny you post this, we've been tossing around the idea of building M3 suppressed greaseguns
Cool I have one of these kits too and have been wondering how to do it!
Homie built a tool to aid in resurrecting dead guns
Really great video Maark. Thanks for showing us.
I know a few cool ass gays who love guns and freedom
I bet you know them real good
I don’t. Be careful. They may appear cool.
@@mikepotter6426 might want to pay more attention
This looks a lot like the subs that were made & looked like sewing machine parts - to be assembled by the resistance. saw a book once by Gerade Metral.....
In the National Guard, I had in 1994! I would like to own one!
I want to be this cool when i grow up
no doubt bro, me too
Awesome video but if you ever feel bad about yourself, you feel like a loser think of the dickhead that was cutting those guns apart. Feel better about yourself instantly.
Good point actually
Seems like something out of a movie that he’s welding it back together lol 😂
Mark get a carbide burr and that will clean the edges up real good.
Hell yah, 20 seconds, job done.
Did this kit come from bowman? I’m so bummed they got that container when all my money is tied up in other guns
If nfa gets smashed what fun if someone could do a semi m3a1 ! Hell use new mags , ar firecontrol group ect .love the channel .thanks for healing an old warrior .
Does the sandblaster struggle with HuMoodity?
I like that Mark comes to the comments 💪🏽😎
@mikewilliams1782 What can I say? I'm a sucker for dad/grandpa humor! :-D
Blasters of all kinds do seem to be moody, and in my experience, it's always some kind of junk clogging the intake plenum. Or WTF it's called.
There's an even simpler version that ditched the charging handle entirely.
Awesome
Mark you spent too much time in Tampa recently I think🤣🤣
IS TG BARK CLOMSIN
Such a neat piece of history!
How did we get to this point where everything men love is taboo, or illegal…really fucking sucks
A certain small-hatted tribe.
WOmen voting. Coincidence?
With a folding triangle stock this thing would kick even more ass
2213 one yearsecz'x;:,,z Q
There were M3 Grease Guns in US Tanks through the 1990s. Of course, there were some units, mostly National Guard, who were still issued the M16a1 and M1911a1 through 1991-1992
I still had one in the regular Army in 1994 and until at least 98 in NG (they were still there when i left the unit so not sure when they went away). Any M60 type tank got them , I was a combat engineer on AVLBS and CEVs that were based on 60s.
Nice work! It’s gonna be awesome! Take care.