Lever-Delayed Prototype SMG: The MAS Mle 1948 Series

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When France decided to adopt a new 9x19mm submachine gun after World War Two, all three of the main French arsenals (St Etienne/MAS, Chatellerault/MAC, and Tulle/MAT) developed designs to compete for adoption. Tulle would eventually win and their design became the MAT-49, but the other lines of development are quite interesting.
The MAS design from 1948 was a lever-delayed system, anticipating perhaps the later FAMAS rifle. We have a series of developmental prototypes to look at today, from early prototypes to an example used in field trials in Indochina. They all share the same basic mechanical system, but cary in many details including stock design and barrel length. Overall the design is pretty good, and they performed will in trials - but the lever-delayed action was much more complex and expensive to produce than MAT's simple blowback design.
Many thanks to the IRCGN (Institut de Recherche Criminelle de la Gendarmerie Nationale) for allowing me access to film this series of prototype for you!
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Пікірлер: 425

@mlp_firewind8129 10 ай бұрын

These guns simultaneously look like they are from the trenches and from space.

@vladcrow4225 10 ай бұрын

...In other words - from france.

@Juan_Dominguez 10 ай бұрын

Right?

@TheLittlemonster333 10 ай бұрын

Imperial guard level

@gohunt001-5 10 ай бұрын

A perfect Star Wars prop gun!

@adriaanvanwyk662 10 ай бұрын

@@TheLittlemonster333 Krieg Guardsman: Happy Gasmask noises

@xboxhomie4 10 ай бұрын

French Prototype SMG? Ian’s heart is fluttering in his chest

@alphapapapapa6341 10 ай бұрын

No wonder he's sitting down....

@godemperorofmemes992 10 ай бұрын

His hands are clearly sweating. When the camera cuts off and the curators leave the room, he whispers sweet nothings to the gun in French and delicately strokes the magazine-well.

@_marlene 10 ай бұрын

so is mine! these guns are SO cool, they should appear more in media!

@kriegguardsman9117 10 ай бұрын

Imagine his joy when he disassembled it and saw it wasn’t put together right.

@garrysekelli6776 10 ай бұрын

He is a Frenchie at heart.

@awmperry 10 ай бұрын

I'm unreasonably pleased to hear Ian say "full dakka". 🤣

@wbravenboer 10 ай бұрын

Red ones go faster!

@TheCoyote808 10 ай бұрын

CAN NEVA BE FULL DAKKA! DERE'S NEVA ENUFF!

@awmperry 10 ай бұрын

@@justforever96 Nope. But always enjoyable.

@timblack2885 10 ай бұрын

Ian is an Ork in disguise. This confirms it

@Kahzmat 10 ай бұрын

Ian casually fixing a prototype reassembly. Au calme !

@bastienrannou6346 10 ай бұрын

J’ai pas très bien compris ce qu’il a réparé, vous pouvez me donnez le codetime ou me dire ce qu’il’a fait?

@johnmurcott1273 10 ай бұрын

@@bastienrannou6346around 6:20

@johnmurcott1273 10 ай бұрын

6:00 sorry

@bastienrannou6346 10 ай бұрын

@@johnmurcott1273 thank you.

@kriegguardsman9117 10 ай бұрын

Probably made his week

@gilgamecha 10 ай бұрын

Ian wandering into museums and fixing stuff he finds there. 😂

@ForgottenWeapons 10 ай бұрын

Not the first time or place it's happened! :)

@amendable5401 10 ай бұрын

@@ForgottenWeapons I’ve been wondering if there’s a video or known lore available about how Ian came to be? My guess is a love of guns, history, and a degree in mechanical engineering? Mixed with a great teacher’s love of the subject, as well as a humble genuine likability. Whatever it is it’s a spectacular combination. Thank you for all you do Ian and Forgotten Weapons staff.

@SoupieGuitar 10 ай бұрын

@@amendable5401the final form of Ian we see now is the result of many failed prototypes

@oldscratch3535 10 ай бұрын

@@amendable5401 I vaguely remember a video long ago where he talked about how he got into doing this. Couldn't tell you what video or when though. And I may just be imagining the whole thing. I realize that's about as helpful as a screen door on a submarine. Sorry.

@amendable5401 10 ай бұрын

@@oldscratch3535 Haha. Very much appreciate the efforts though. Thank you.

@jazzmaster909 10 ай бұрын

its a Prototype firearm AND ITS FRENCH! this is gonna be a good video

@-Jester 10 ай бұрын

It's basically a guarantee it's gonna be some weird shit

@Rhynome 10 ай бұрын

"Pierre, where's all the absinthe gone?"

@clothar23 10 ай бұрын

@@Rhynome Into the C4 model obviously.

@whitestarlinegoodnight 10 ай бұрын

Really aesthetically pleasing gun honestly. A cross between an HK roller delay gun and a MAS38.

@drdoom-skull2244 10 ай бұрын

The road to the MAT 49 saw many interesting prototypes. Also, it is interesting how the different state arsenals developed different takes on the same set of specifications. Pity we lost the small firearms industry (except for PGM and Chapuis).

@kennyroberson5726 10 ай бұрын

Honestly I always thought the MAT 49 looked like *it* would have been a prototype that never saw field use but here we are lol

@ericmitchell985 10 ай бұрын

I love delayed blowback smgs. The designs just scale so much better for pistol cartridges.

@TheApocalypseShovel 10 ай бұрын

When he starts with "...with their gracious permission", I immediately thought of Ian secretly breaking in to the armory to give us the breakdown of interesting firearms

@SuperFunkmachine 10 ай бұрын

Thats the lock picking lawyer crossover.

@clothar23 10 ай бұрын

@@SuperFunkmachine" Click on one , two's binding, three's set , back to one...and we're in...Ian will now take over.."

@Ian-ot7up 10 ай бұрын

@@clothar23 "Welcome to Forgotten Weapons - My name is Ian McCullum and we need to be *really quiet today*.

@lukaszpokoju 10 ай бұрын

Looks strangely similar to the Walther MPL which was developed only few years later. Despite the MPL using a much simpler simple blowback system, there are many odd similarities between the two, like the overall shape, grip angle, bolt architecture, charging handle location, the MPL even has a notch on its front sight protector, just like on the front sight post of many French guns of this era. Probably just coincidental. I believe the Walther MPL is in a way, what the MAS 48 could have become, in the event it would have gone through longer development ( removing the complex delayed-blowback system, replacing grip safety/ double trigger selector, by a selector switch, improving the stock design, using stamped steel for the upper and lower receiver).

@ianray8823 10 ай бұрын

So proud of our man Ian "I've got 4 MAS submachine guns under the table" McCollum

@AllAboutSurvival 10 ай бұрын

The complexity of the action system is a reminder of the trade-offs in firearm design, but it's a testament to the innovation in post-WWII France.

@andersjjensen 10 ай бұрын

And let's not forget that the SMG to rule all SMGs, the MP5, is not a simple blowback gun. The guys who worked on this one clearly knew what they were doing. I imagine the recoil impulse on these wouldn't be too far off the sensation the roller delayed system provides. And even as an undying MP5 and G3 fan I must admit that this system looks more gunk resistent.

@TeletubbiesRcute 10 ай бұрын

It's really not that complicated

@andersjjensen 10 ай бұрын

@@TeletubbiesRcute Obviously not. But it is still more complicated than a one-piece bolt and a spring, as is what is needed for simple blowback.

@ozcan_ncy 10 ай бұрын

The overall silhouette of the gun somewhat resembles an early mp5 a2 with slim handguards when you squint, I wonder if the bolt extension forward goes all the way in the longer version or ends somewhere around that sling loop.

@AYellowPepper 10 ай бұрын

I really like the look of these guns! They have that perfect 40s-60s "diesel-punk" Scify look!

@beter21137 10 ай бұрын

Frenchies the moment they get liberated: Alright guys time to get funky *Proceeds to make the weirdest SMGs, planes, tanks.

@jsquinlan 9 ай бұрын

I’m loving the Red Ryder inspired fitment of the wood buttstock to the receiver.

@scottdoran3112 10 ай бұрын

...Ian correcting the museum's wrong assembly of their own machine gun; priceless....

@mtnbound2764 10 ай бұрын

that little lever mechanism is pretty genius, its soo cool to see all the different soluitions people have come up with.

@tomaspabon2484 10 ай бұрын

How to ID a french prototype SMG: Step 1: check if it folds Step 2: check the markings

@psychopathmedia 10 ай бұрын

2:13 Looks like an MP5, STG44 and FAL smushed together

@baaltaco1876 10 ай бұрын

On t'aime Ian ! J'espère que t'as bien mangé en France !

@nannonana 10 ай бұрын

It's so cool how Ian knows so much about rare prototype firearms that never really saw any duty.

@jameshall1300 10 ай бұрын

It's French, so it's understandable. That's kind of his obsession 😂

@Dunkopf 10 ай бұрын

Bless you for releasing this while I can't sleep.

@arielgarcia5065 10 ай бұрын

By looking at the thumbnail of the video I thought it was an underbarrel granade launcher for CETME of G3 rifles

@diogoduarte4097 10 ай бұрын

These are some long barrels for an SMG. They are pretty interesting, but indeed look rather expensive compared to other SMGs, I'm glad the concept was recycled for assault rifles.

@romain.lacroix 10 ай бұрын

Ian's made me discover my own national treasures. What gorgeous pieces

@captaindookey 10 ай бұрын

God it's a French Ump I want one....

@shatterquartz 10 ай бұрын

Now that they've let Ian in, I don't think they'll ever manage to get him out.

@cellphone3010 10 ай бұрын

He's made a nest somewhere in the walls. Just leave him some gun cleaning equipment and occasionally some ammo for the rarer guns and you've now got a free gun fairy.

@Xaevryn 10 ай бұрын

I think most museums have learned to keep a little spray bottle full of water handy for when they want Ian to leave

@I_Automate 9 ай бұрын

@@Xaevryn They just rattle a box of .32 French outside of the doors and he comes scuttling out

@Mr_Dopey 10 ай бұрын

The locking surface for the wedge looks like the perfect home for debris.

@JamesLaserpimpWalsh 10 ай бұрын

Noyce ! Every now and again you show me something I had never seen or heard of. Thanks Ian. Fine work sir.

@ordinosaurs 10 ай бұрын

14:18 № in French means "numéro", which basically translates to "number". It serves the same purpose as your ubiquitous use of the hash mark "#" in the US.

@User_Un_Friendly 10 ай бұрын

Best part of the video is Ian saying "Full Dakka". 19:50 😂

@bercerus 10 ай бұрын

Those would be great as Star wars blaster.

@ChimpOnComputer 10 ай бұрын

That thumbnail looked like as if they made it into a pistol or machine pistol like some sorta Mauser rival lol, one can dream.

@STRAKAZulu 10 ай бұрын

The MAS-48 reminds me of the weapon that was included with Dusty V.2 from GIJoe.

@QruisS 10 ай бұрын

Reading "Lever Delayed" and instantly being confused as to how that would even work.

@LOVEMUFFIN_official 10 ай бұрын

He actually has a series of videos explaining how several of the primary operating systems work, including lever-delayed. It was very helpful, for me at least.

@ankaynavravens 10 ай бұрын

Here you go. It is an other over depayed gun brake down by Ian kzfaq.info/get/bejne/gL2BedeDrsqcZYk.html&pp=ygUYRm9yZ290dGVuIHdlYXBvbnMga2lyYWx5

@ulvschmidt7174 10 ай бұрын

Same principle but insted of rolers accelerating the bolt backwards with angled surfaces there is a lever throwing it back

@someoneelse4492 10 ай бұрын

A whole room full of prototype french sub machine guns .. you're practically glowing :)

@smalltownrifleman 10 ай бұрын

Thank you Ian. I do enjoy your timeline/prototype examinations. Please continue the great work.

@mathewweathers2788 10 ай бұрын

I love that Ian goes to a museum and fixes their stuff.

@cellphone3010 10 ай бұрын

some archive technician will soon be learning they screwed up and feeling incredibly embarrassed.

@flo__60 10 ай бұрын

as a french it feels good to know that we have some well advised peoples in the gendarmerie who got in touch with Ian to make these video possible.

@alasdairmackintosh 10 ай бұрын

My Grandpa was Canadian born by Breton parents. His family went back to Brittany, France in response to the great depression of the 1930s. In the time before he was old enough to enlist as a soldier for WW2, he and his brothers spied on roads for the French Resistance. He enlisted at 17 for the French Army and served until 1950, deciding to move back to Canada in 1955 and start a family. He would end up having a family of 6 kids. I always wondered what types of fire-arms he might have handled/relied upon and your videos have really helped give me a better idea of that, thank you!

@thomaswashburn3513 10 ай бұрын

All I could think of during this video was C3PO and C-4 (explosives) 🤷‍♂️

@MsJoao101 10 ай бұрын

I don't think there will ever be anyone else with the kind of access to these things like Ian. I'm sure it didn't come over night and that there is a lot of work behind it, thank you...

@parttimememedealer7071 10 ай бұрын

A gun so niche,obscure and French only Ian could love it

@TheFanatical1 10 ай бұрын

So the lever works both as a safety and as a delaying mechanism? How ingenious.

@some_Russian_dude 10 ай бұрын

I love how cool french firearms are.

@stumpythedwarf8712 10 ай бұрын

Thank you Ian, as always. Hopefully they're happy you fixed the gun for them.

@raifsevrence 10 ай бұрын

These are such cool looking guns. The way the mag well folds up with a mag in place is a very interesting feature. Couple that with the folding stock and you have a fantastically compact package for transportation. Love the operating system too. Shame these never got adopted. Looks like a much better platform than the MAT 49. The MAT 49 seems to have taken the grease gun school of cheap as possible, but still functional design and won out by appealing to the government's wallet. That and I'm betting it weighs several pounds less than these MAS 48's.

@adamkaneshiro 8 ай бұрын

i think some manufacturer used a similar concept with a glock pistol where the grip/magwell hinged and made the pistol more compact

@gilmour6754 10 ай бұрын

Very cool video. These are such interesting little guns. I can see how useful it would be to have a loaded smg that can fold up so much

@christinepearson5788 10 ай бұрын

This bolt and spring arrangement reminds me of an MP5 if we used a lever instead of rollers.

@mustafaabdelwahab1478 10 ай бұрын

These are so cool, I could see these in Marauders

@fratercontenduntocculta8161 10 ай бұрын

Ever since seeing Ian shoot the MAT-49, I too have fallen for French SMG's. For a country not very well known for guns, France has some incredible small arms!

@clothar23 10 ай бұрын

You do realise you're talking about the first country to ever develop and adopt a smokeless powder rifle. Than issue it en masse to their troops. Sure the Lebel was a crap rifle but the French have never been in the background of weapons development .

@c1ph3rpunk 10 ай бұрын

Ian’s in his happy place. But does it come with a lightly browned butter sauce.

@joaoie 10 ай бұрын

Me: That doesn't look right for a lever delay is this something really unique? Ian: This is actually assembled wrong. Hard to describe the sheer joy in having called it right.

@spellxthief 10 ай бұрын

the c4 model or the standard pre-production models with a magazine in the folded position would make a great starwars gun

@me.ne.frego. 10 ай бұрын

The long barrel version would be awesome in .30 Carbine.

@notadorf 10 ай бұрын

a somewhat similar prototype in .30 carbine did exist except it's roller delayed, it's called the ceam modele 1950, notice how this gun has a similar look to an hk g3 because it was "co-developped" by captured german engineers after the second world war. it was a whole branch of research on delayed blow-back mecanism.

@notadorf 10 ай бұрын

if you want a video on the ceam 1950 ian made one here kzfaq.info/get/bejne/o9hyfNCilaudn58.htmlsi=W096QrabavQrSiUS

@me.ne.frego. 10 ай бұрын

@@notadorf From small arms to long range missiles, almost everything from everyone is based on german tech!

@yo.mama100 10 ай бұрын

😂😂 the stock on that machine gun looks like the Daisy BB gun

@psychopathmedia 10 ай бұрын

3:06 One of the strangest features of French submachine guns is the collapsible magwell

@clothar23 10 ай бұрын

I mean I guess it's one way to transport a loaded weapon...Never approved of adding complexity to a weapon though.

@CyborgBirdie 10 ай бұрын

the stuff most people have nightmares about, Ian has dreams about

@quentinburns8298 10 ай бұрын

these level delayed blowback guns never cease to amaze me that they work at all.

@jamesdalton2014 10 ай бұрын

Well, it only works once Ian has foiled the Gendarmes clever attempt to render the gun inoperable by reversing the lever. I wonder if he told them what he'd done or if he just put it back the way it was.

@fbisurveillancevan6939 10 ай бұрын

Hello Ian! Hope you are doing fine! I'm a big fan of your videos. I'd like to know more about the FAMAS and it's development. I think it's an interesting and futuristic design. To me it looks like the French went from super dated to space age, within a few years with the FAMAS and it doesn't even looks old 50 years after the deveolpment. Would be great if you could give us some insights of that topic. Keep up!

@jamesberry3230 10 ай бұрын

Ian has a book on that subject

@bikesfrench8524 8 ай бұрын

New VCD10 Lebel VCD 15 lebel Verney Carron New model french gun

@enricopaolocoronado2511 10 ай бұрын

They look so goofy. Like some kid in elementary if you asked him to draw a gun from scratch.

@RealCadde 10 ай бұрын

BUT WHAT HAPPENS if that "lever" is installed backwards? Will it then fire and also not be lever delayed?

@revolverDOOMGUY 10 ай бұрын

Reminds me a lot of the armaguerra og-44

@sealove79able 10 ай бұрын

A great very interesting video and French experimental smg.Have a good one Mr.GJ.

@johnnyappleseed6415 10 ай бұрын

Ian says he has more MAS SMG's under the table... Would that be "Blade Runner" style??? If so, where is the Voight-Kampff instrumentation??

@kmech3rd 10 ай бұрын

The Firefly aesthetic is strong with this one.

@MrCornpop 10 ай бұрын

that takedown of the first one was yummy

@stefanosiclari 10 ай бұрын

I quite like how these guns look

@TimPimentel3006 10 ай бұрын

Anyone else getting Daisy Red Rider from those wooden stocks? Particularly where they attach to the hinge assembly.

@veleriphon 10 ай бұрын

That FCM also looks like a precursor to the AR design.

@Stevarooni 10 ай бұрын

"Convergent technology". If it's a good idea, it will happen. Maybe even multiple times, independently.

@VegasCyclingFreak 10 ай бұрын

Interesting to see the design development process

@b-conn6624 10 ай бұрын

Just love how strange these guns look.

@oneproudbrowncoat 10 ай бұрын

That final iteration is beautiful.

@avp5964 10 ай бұрын

Thank you Ian thank you Gendarmerie. Amazing these prototypes getting to see the light of day!

@Getpojke 10 ай бұрын

Really interesting. Was there a specific designer or Government/Military, order/edict that sent the French down this route of having ultra compact folding sub-machine guns? I can see the purpose of wanting them small for stowage/transport, especially for paratroopers on in battle taxis. But I sometimes wonder if it was any quicker to engage a folding magazine & well compared to slamming a magazine in place & start firing/having a safety catch in place for a loaded mag? A folding magazine well also seems a natural weak point that could cause feeding failures to me. It does however make them very cool & Heath Robinson (Rube Goldberg if you're American). It just seems that they were designing heavily towards a predominance of paratrooper or sneaky covert use, when for much of their service life most sub-machine guns would be carried ready to use. (Maybe just the old case of "the French copy no one and no-one copies the French!?) Then again I suppose the French Gendarmerie/Gendarme regularly carry sub-guns & it makes them easier to carry without appearing overtly offensive in public!? Thanks for the video, I found it fascinating to see this amazing collection of splendid guns.

@johanmetreus1268 10 ай бұрын

Ease of carry also transfer into ease of storage. Short racks and compact crates that makes logistic transportation more economical. Folding magazine well means you don't have to start the process retrieving a magazine from your webbing, which was a far cry from the speed access oriented webbings of today. Their main purposes was to 1) make sure the magazine wasn't lost when crawling and jumping around, 2) prevent dirt to ingress) and 3) prevent damage to them. If that meant secured protected flaps delaying the shooter half a minute, so be it.

@Getpojke 10 ай бұрын

@@johanmetreus1268 Yeah, I can see those points being very much part of the design ethos. Maybe just an evolutionary blind alley in gun design, as they're features we rarely see today apart from some very specialised instances. So maybe they weren't worth the drawbacks in the long run!? So saying things like folding/sliding stocks have become common & mag placement in things like to pistol grip/bullpup/longitudinally (eg P90) all can help make things more compact or shorter on Submachine guns & PDWs. But finding that perfect layout while keeping things compact still seems to be a white whale.

@johanmetreus1268 10 ай бұрын

@@Getpojke Goatboy, I'm not sure that the design meeting a dead end as much as simple mass-produced submachine-guns not having much value in a world where you can get a five and half mm (5.45 and 5.56) carbine relatively cheaply and in about the same size. As to why we don't see folding magazines on carbines, I think it is because the form factor of magazines today. The SMG-magazine were very long and thin, so you save a lot of space that way. Now most use carbine length of intermediate cartridges, and the more square shaped rectangle doesn't make that much of a difference. So yes, that White Whale is still out there.

@jasonhall7491 10 ай бұрын

I love the lever delay action.

@smashallpots1428 10 ай бұрын

im really digging this one

@CypherC300 10 ай бұрын

I initially read the title as 'Laser-delayed' and was super excited to watch this video.

@FunkBastid 8 ай бұрын

Ian fighting every urge to keep both hands above the table

@kwazar221 9 ай бұрын

Ian as a french guy and french shooter I would thank you for the effort you make to pronouce our towns in French. 🙏🏻

@DivingHawker 10 ай бұрын

This looks so much like a French MP5 from the outside.

@Cartoondude135 10 ай бұрын

Nuts! I thought this was the prototype micro Uzi that uses what looks like Glock magazines. But NVM. Keep searching, I know it's out there somewhere. And a friendly reminder: I need at least 6 faces of that weapon so I can turn it into a 3D model in Blender like how a 2D square becomes a 3D 6-sided cube.

@Tallus_ap_Mordren 10 ай бұрын

I love it. Looks like a Walther MPL and a Thompson had a baby. Honestly, except for the stocks, I like them better than the MAT-49

@misterbacon4933 9 ай бұрын

Nice that Ian is in France enjoying their guns! 👍🇫🇷

@oldscratch3535 10 ай бұрын

Externally, its like a Thompson, Stg 44, and MP5 rolled into one gun.

@Sir_Baddington 10 ай бұрын

Pretty neat little gun.

@chriscoogan8090 10 ай бұрын

Gives me a new appreciation for my MP5

@johnd0e25 10 ай бұрын

Really cool, thank you Ian!

@kekolo56 10 ай бұрын

Thank you so much to shed light on French weaponry!!!!

@duanequam7709 10 ай бұрын

I did enjoy the video. You have yet to make one that I haven't. My wife also watches and told me your voice is your signature and makes your videos pleasant to listen to.