USAS-12 Combat Shotgun 

Seeing this caused instant flashbacks to the Pre-nerf USAS-12/frag round massacres in Battlefield 3.

"Fire, Full-Auto, and Semi-Auto." So it's an automatic shotgun AND a flamethrower?!

The SPAS, the Jackhammer, the Street Sweeper and now the USAS-12 - I think you pretty much have the most visible video game examples of combat shotguns covered now.

Ah very handy. When not operating, guide rod functions as shower curtain rod.

Legends say that this weapon can disable the sun...

You know what amuses me about this gun? The full-auto version simply needed a Title 2 License, while the semi-auto version needed a Destructive Device permit.

Very cool, I always thought that this just flopped and was forgotten, I didn't know they made so many. Makes sense why those laws kinda crushed US sales

"Doesn't have a sporting purpose"? Have seen me try to shoot skeet?

i don't think the birds consider that weapon very sporting compared to a double barrel

Thanks for the vid Ian. I got to handle one of these back in the early 90's. I knew Daewoo made military equipment as well as cars, but I had no idea they were the people who built the USAS-12! Before the Howard gun laws in Australia you could buy a semi-automatic version here. The one I got to play with had the 20 round drum. I liked that it had sling swivels, you'd need them if you were going to go bush with it. It was a lot heavier than my SPAS-12.

The interesting part of this firearm is that the barrel is the registered part, not the receiver like other firearms. A buddy of mine who is a class 7 mfg SOT built a 'new' firearm from a USAS12 parts kit and made a new registered barrel. So he was able to scrub all the markings off the receiver and put his own markings in place.

I've always wanted one of these since it was my favorite weapon in Soldier of Fortune 2: Double Helix for the PC. An absolutely powerful and brutal weapon.

If you played battlefield 3, you will never forget this weapon.

Daewoo make a LOT of stuff. Small arms, vehicles large and small, fighter jets and other aircraft, heavy construction equipment, fire control systems(land, sea and air)refrigeration I think too and they're into ship building as well.

Any government that forbids it's citizens from owning these has sided with the zombies.

i'd love to see a SPAS15

... there really isn't reason at all you can own a SAGA-12 and not a semi-auto converted USAS-12. What the hell is the treasury department smoking. It still uses legal and widely utilized ammunition and is of right length barrel length, does the bore size really make that much of a destructive difference if you're shooting the same exact ammunition as almost every other shotgun in the US? I mean, the bore is a little bigger than average but its not exactly a blunderbuss or a punt gun we're talking about here.

When your company is tired of making things that kill by accident and want to make something that kills on purpose.

This weapon can control day and night. Also good for shooting down Su-37s. Destructive device indeed.

The Treasury Department has a say in gun laws? What the hell? That doesn't sound right.

I knew daewoo as an outside foreign car manufacturer that was sold in the early 2000s but nobody really bought them a whole lot. I was very surprised to hear that name on a shotgun

i think you forgot to say that if you want to change the extraction side, you have to change the extracor on the triggerunit to the other side

This is such an interesting design! Simple, and effective. I'm very thankful you make these videos.

Looks like a really strong design with that long guide rod.

My introduction to this weapon wasn't video games, but watching the Stargate series. One of them is in the pilot episode and along with the SPAS-12, features prominently in many of the episodes with the milky-way galaxy Replicators.

"Sporting" Yeah gonna hunt some deer with this, and turn it into ground beef at the same time.

A few of those Daewoo rifles you mention saw action on the roof tops of K-Town during the riots of LA back in '92

Wish he was able to do a video on the aa-12 it’s such a cool weapon with a very effective design. I love the low recoil of the aa-12 and how destructive it can be.

I got to fire one of those on full auto when I was in Special Forces and they were evaluating them. I wasn’t part of the evaluation team, just lucky enough to be at the right place and the right time. I’m short, 5’4”, and it looks like it would be really awkward, but it wasn’t, it was quite comfortable to hold and actually controllable on full auto.

I, myself, tend to run one of these or something equivalent- when I need to clear a whole house. And hopefully take out some tangos along the way. Seriously, though, these types of weapons are really impressive to behold, albeit very, very serious; like watching a beautiful but entirely deadly wild animal. I’d never want to be down range of something like this.

Meanwhile in Russia "Hey Dmitri lets make a shotgun that looks an Ak."

I've always wanted one of these, thanks for the video.

I can thank Syphon Filter 2 for introducing me to these amazing weapons... would be awesome to own a USAS-12

I used a Saiga (12ga AK), pretty nice, huge recoil though, and mine never had auto. I think full auto shotguns are a great idea. Sad that those grand beasts sometimes die because of paper pushers :( the insides of the USAS-12 look facinating. Thanks for the vid!

Brilliant design !!! Love the simplicity and solid looks,

It's amazing how simple the damn thing is.

i never thought full auto, magazine-fed shotguns existed

In BF4, they have this and it’s sooooo fun to get kills when guys are hiding in cover just from the Splash damage. Also, if you like the USAS in Battlefield, you should try the DAO-12 with frag rounds.

Love your videos man! Super informative and entertaining. Keep it up!

It's amazing you could hold this 'destructive device' without being overcome by the desire to kill everyone around which apparently happens.

Daewoo - known thanks to its car - Daewoo Matiz, also they made guns. *cool*

Ian was prepping for the "great toilet paper shortage of 2020" waaaay before it was cool.

Dude i just got asmr watching you take apart this gun.

Safety selector options: Fire, semi & full auto. Now thats a real man's gun right there.

Ah good ole USAS, if you watch Stargate SG1 they were used often in the show by the heroes and background soldiers and on full auto rock n roll as well :D

Thanks for another great video Ian. Youre the best at explaining firearms IMO, Ive learned a lot from you. Pretty simple design and ahead of its time too. Seems like there was a lot of stuff from this era that was ahead of its time or designers still took risks, idk. It would fit right in today with the popularity of that AK shotgun and other shotguns of the type. Ive always thought the idea of automatic shotguns was silly. Make it semi-auto and youre set. Why didnt they establish a branch in the US like other companies have done to get around import bans? Oh ya, and it still surprises me to this day how relatively low pressure shotgun shells are. I dont think most people realize this. Probably the reason why a slam-fire shotgun can work safely?...

I want one! Nice job Ian!

Your videos are so crazy good!

USAS-12 was AMAZING in the Bad Company 2 game, just a wonderful, fun, gun.

Best weapon to dispose of Replicators :3

Incredibly cool engineering.

Correct me if I'm wrong but to change which side it ejects from wouldn't you also need to switch the ejector to the other hole in the lower?

When it comes to daewoo, I think of my microwave 🤣

AA-12 Frag rounds

what a cool design, very clean, yet futuristic even today.

Hands down one of the most underrated shotgun in the MW3 days

"I'm a god with this! I can control day, and night!"

The ATF was so wrong to classify this as a Destructive Device when in semi-automatic they are no different than any other semi-automatic shotgun. This is really no different than the Origin-12, Saiga-12, VEPR-12,etc. I have always wanted one of these. I have fired a semi-auto and full auto version at a MG shoot.I lusted after this gun after reading an article in the 1980s. I love exotic shotguns. I have the SPAS12, SPAS15,LAW12,DP12,KSG,KSG25 and Saiga-12 and Saiga-20 along with my Origin-12 that I bought because I will never be able to own a USAS-12 or AA12 and it reminds me of those guns.I Love Military/Para-military style firearms especially from the 1980s.

I used to read a men's action novel series that dated from the mid-80's onward and one of the main characters used a modified version of this gun as his main long gun. Neat to see it in real life!

We had these common use in the Philippines used by guards and in firing ranges,a pretty fun gun

There are a pair of holes for the ejector, I assume you'd have to switch it to the other side in addition to swapping the dust covers?

Oh my god I remember seeing these used by the cop's in Michael Mann's made for tv movie: - LA Takedown, I remember thinking these were the coolest guns I had ever seen (I was only a teenager). As far as I know that's the only film they were used in, it's a shame he didn't use them when he remade the film as Heat, now if the team of robbers were all armed with these that would have been a hell of a shootout

I kept looking at the paper towels sitting above the toaster oven. Next to the big cabinet marked Flammable.

Ohhh, I remember this one from Soldier of Fortune 2. Got surprised while looking at the floor holding one, and emptied a magazine into someone starting at their feet. By the time it ran dry, there were bits of them EVERYWHERE. I remember it took a while to locate everything, then we found a hand and an eyeball halfway down the next corridor.

SPAS-15: Who are you? USAS-12: You but American

When i find out they have this in a video game I’m like: oh f***ing boy. I cant WAIT to tear these apart.

Aa12 is so sick. Can't wait til that video comes

I still need this!

very interesting

fascinating design! but that "destructive device" term is ridiculous.

i like how the assemble is covered in the videos

Used to see these a lot in the Philippines, mostly used by bank armored van security guards. Each armored van team would consist of 3-4 guards. The driver had a handgun, usually a revolver or a Armscor 1911 9mm, the others had pump shotguns, and one would always have either a norinco type 56 or one of these.

I got my high score on Nintendo "Duck Hunt" with one of these!

I'm fascinated by the Atchisson shotguns and full auto shotguns in general. It's hard to imagine any scenario where a full auto shotgun would be a better choice than a semi auto shotgun. They're undoubtably cool, but they don't really serve any practical purpose. The AA-12 and USAS-12 are examples of what happens when an engineer is allowed to run wild. Ultimately, full auto shotguns are solutions to a problem that doesn't exist, which is never a good thing from a business perspective.

Holy crap! He actually got a hold of one!

i love that the playlist is called “for dinosaur hunting”

Does the destructive device classification apply only to semi-auto versions of this gun? Or does it also supersede the machine gun classification on full-auto models?

Ah yes, the Second Amendment: The Right to Keep and Bear Arms That Have a Sporting Purpose.

Thanks for good video.

aside from the screws, that is a elegant, well thought out design .

Thanks for the sermon Gun Jesus

I always seem to get educational videos teaching things like shapes and colors to small kids as recommendations on your videos... I think RU-vid is trying to tell me something. (｡･ω´･｡）

I remember reading about this back in the 1980's in the old action-adventure novels featuring "Able Team" from the Mack Bolan universe. Carl "Ironman" Lyons used one and I thought, in print, it was the coolest thing ever

Daewoo precision used to produce licensed version of m16, so they used m16 design pretty much..

now you have power over day and night!!! bff anyone?

M16: who are you? USAS-12: I’m you but can turn of the sun

I was watching Stargate SG1 and was noticed this gun. I had no idea what it was until now. Thanks, gun Jesus.

What a gangsta ass piece of weaponry my dude 💯

Great video. Do you think you could find a KS-23 shotgun/carbine to do a video on?

3:33 Fire, Semi-auto, Full-auto? xD

I have one of those. It's a lovely shotgun, if you can get your paws on one, get it. The ergonomics are awesome, the overall layout is pretty clever and interesting and the build quality is quite good. It's just weird that you didn't point out how massively overbuilt this thing is compared to a normal gun. Almost everthing about it is huge, juste look how massive the trigger housing is. It's a delight to shoot, but man it's heavy.

"When it comes to Daewoo you're probably more familiar with their rifles." Or, you know, their washing machines.

"Normally it would be fire, semi-auto, fully auto" LOL sounds like my kind of gun safeties are for beeiches.

I'm probably incorrect but aren't the Streetsweeper and Stryker (or Striker depending on who you ask) the same weapon just differently named for different markets? I'm thinking of another video from Forgotten Weapons that covered the Streetsweeper/Stryker (Striker) which threw this up.

Most of these magazine fed shot guns are so overly complex and expensive that they really make me appreciate having a Saiga 12.

6:17 when that "roller" is down bolt cant be locked, it ensures that the locking lug will not hit anything on its way into battery. A groove in the receiver keeps the roller down until the bolt is in battery.

LUBE

I'M A GOD WITH THIS GUN I CAN CONTROL DAY AND NIGHT

Funny how taking this apart is less complex than taking a NERF gun apart.

Numbers wise, if anyone is interested (values are approximate, individual loads vary sightly); .22 LR, 3,500 psi .38 Special, 18,000 psi. 9x19mm, 35,000 psi. .223 Remington, 56,000 psi .30-06 Springfield, 56,000 psi .308 Winchester, 62,000 psi 12 gauge shotshell, 11,500 psi