(7min mark) the way the 40mm has a safety mechanism with the bearing acting as a detonator block is the coolest thing ever. Whoever invented that is a pretty smart guy.

In Vietnam I carried an M79 grenade launcher and also carried an side arm, 45 cal 1911 pistol for close-in protection.

Awesome. Ideal for home defence.

wow, the 40mm is low key a feat of engineering.

I am an Infantrymen. I carried a m-203. Perfect Weapon for several different applications. Anti-Personal/ Anti-Material. Several different type of round were used. There was a HE, AP ( would go thru a door or a hood of a 6×6) Lightly skinned Vehicle, and APers (Anti Personal).There was a Shot round. It was like a shotgun shell full of .30 Caliber shot, and then there was the Flechette round. It kicked like an 8 Guage shotgun.

Knee mortars were never fired by resting on your leg, unless you wanted a broken bone. It was designed to rest on ground or a large branch

Grenade launchers are my favorite support weapons. Something about the arc trajectory of the projectile makes sense to me, and even at extended ranges, I have no problems getting a shot in thru a window or door. If you really think about it, the magic is in the ammo itself.

Its amazing how simple an RPG launcher really is. All the cool stuff is in the grenade itself.

The centrifugal fuse to arm the explosive in the 40mm was genius

Not sure when it came about but the "defence" problem mentioned at the end of the video forgot to mention that they made 40mm buckshot rounds. It basically makes a grenade launcher into a blunderbuss. And while I already knew about it this explains to everyone why EA made it so the grenade launchers in battlefield don't go off when you shoot an enemy with it at point blank range.

Thank you for the explanation of High-Low! I remember reading about it when I was in middle school and just never being able to visualize how it actually looked inside a 40mm casing or how it actually worked. Still never really grasped it until now.

This channel's videos should be used for military courses

The illustration of the knee mortar is hilarious good luck with that broken femur

I'm really enjoying your videos so much Mscope. I keep coming to watch some of your videos. Please keep up the good work. I can't believe your channel with such informative, no over the top editing, to the point yet so easy to understand is so underrated! Btw, that 'Rotational-arming system' is so clever.

I used a M203 when I was in the army in 1982. Beautiful weapon. Kinda weighty especially carrying the grenade and the M16 rounds though.

Great explanation and excellent graphics :)

My buddy who was in Vietnam loved his M-79 "Blooper." Once, though, when he had it resting on his hip, he accidentally fired a round straight up. All the guys were looking up to see where it would land. Luckily, it landed at a safe distance. We miss you, Robert. ("Bobbie" R., 4th Inf. Div., 1967-69, around Pleiku, Dak To, etc., two tours) -Old Guy

Thanks for this series, its fascinating and informative.

Thank you for covering the high-low. Most have no idea it's not like a bullet. Close but not the same.

The tough part is keeping the thing on target while you're laughing your ass off because you know what's coming.

In 1964 I was stationed at Ft Benning GA and assigned to the US Infantry Board. I tested small arms weapons and the M-79 was one of them. We had our own ranges because everything was classified and all personal held top secret clearance. The M-79 was my favorite of all. We worked on modifications to the weapon.

great video! incredibly underrated.

What made the M16 so deadly! Can shoot bullets, and fire grenades. The person that put it on the rifle, Had to have war experience. It was a Brilliant Ideal

Actually the Russian RPG is a 40mm grenade, since the inside of the tube is 40mms, whereas many widely different warheads that sit outside of the barrel can range from 40mm Anti-personnel shrapnel rounds or 90mm enlarged armor penetrating warheads.

So when our company got to pull Green Line duty for 2 or 3 days on a remote LZ, we would play a little game with these on guard at night. You put one in the tube and 2 on the sand bags in front of you. Fire the first at a high angle, reload the 2nd and fire medium angle, and the last at low angle. The winner was the one who got all three rounds to impact at the same time. It was called H&I, harass and interdict, so it was "officially" approved.

In my college years in my rotc class wat back,they taught us about this launcher.we also got a chance to fire it. There was an incident that the grenade didnt launch.our instructors told us to carefully remove the ballistics and drop it slowly in the ground and leave the perimeter. 3 to 5 mins later,it went off! No one got hurt.but nowadays assault rifle mounted grenade launchers dont have to worry about this misfire.just click again to fire..👍👍👍❤❤❤

Wow, impressive design. At time 7:22 where it shows the arming and detonation sequence of counter leverage is a brilliant design and I like the safety feature with the ball. I have to wonder if you could throw it hard enough to arm it.

I was wondering how grenades in fallout don't explode entirely at the moment of firing. Speech synthesizers are getting better.

Excellent video, eagerly waiting for the one on UBGL

Excelent video and explanation.

extremely interesting to understand the mechanic, thank you

The M79 was called the thumper for the sound it made

Very well presented, awesome 👌

BRO KEEP IT COMING I LOVE THE TUTORI-

My line of machines at Canadian Arsenals Ltd in Longbranch Ontario made thousands of barrels for hose things for the U.S. during the Vietnam war. The barrels were black anodized aluminum.

Great video. To quote Arnold Schwartsneger, "Excellent".

Good channel, love the graphics

Nice explaination ❤️❤️

love the video

Demoman course 101: "what makes YOU a good Demoman"

Awsome vid. I was hoping to find out how 40mm grenade's safe distance work and satisfied

Perfect explain.

Awesome videos!!!!

Wow, the quality is awesome! The subscriber amount really does not reflect the quality that this channel is providing. I'll do my little part to increase that number :)

Just what im looking for!

Really well bloop

Toys that go boom are my favourite, they make for a wonderful day

Your channel is amazing keep making such videos I like it 👍👍👍

The u.s. Developed and had the bazooka in the early 40's every one had a version afterward

is there more precise animation work? awesome work 10/10

Yes, the M79 grenade gun. Here in Australia we had a nickname for it, the wombat or thumper gun. When I served, had an absolutely fun time using it. Didn't like carrying it around on the back of my webbing though, a bit uncomfortable.

I was lucky enough to see some of the original blueprints for the m79 apparently it was developed in Duluth or Superior or the inventor was from that area

That's an extremely hard and great work👏👏

Now this one is well made and factual👏👏👏👏👍👍👍

0:46 The Knee mortar didnt actually go on your knee. You would be in for a lot of pain if you did that. Forgotten Weapons has a pretty good vid on this one

Knew a Vietnam vet who had a cool story. He said a guy in his platoon shot a tiger with a blooper (grenade launcher) He said the thing was running at him and he shot it. The reason it didn't explode is because it was very close and the safety mechanism worked with centrifical force. The round has to spin something like 40 times before the centrifical force disengages the safety. So the round didn't detonate and pretty much acted like a big shotgun slug. The guy had a picture of his platoon posing with the tiger with a four inch gash in it's side and he wore one of it's claws around his neck. Sorry if you like tigers, but I thought it was a pretty cool 'hunting' story.

If the soldier fired that Japanese grenade launcher from his knee as shown he would break those bones. That did occur a lot until the soldiers were told what happens, and they gained experience. A few marine and army troops with shattered bones taught everyone else.

Hi MSCOPE channel, one word i can tell you, that is an impressive channel, stun, animations and explain how things work, i do not hesitate to like and subscribe to your channel and type some words here, and please make more video like this, and remember don't forget to add English substitutes on each of videos. many thanks.

Terminator 🔥

Super interesting channel! 👍

RPG is a shockingly effective weapon, that and the IED

Nice👌

I love bloopers

Fantastic❤

Great video! I've handled M-79's while in the USN, but never fired one:(-John in Texas

"what's makes me a good Demoman?"

"stab-lee"

I'll bet they'll make a model that can be dropped by a small drone. I appreciate the hard work that goes into making these videos.

In Vietnam I liked the M-79 because it was easy to clean ,by just pulling a towel through the barrel. LOL

I was waiting for You to correct that misconception about the Knee Mortar . Good thing you saved Me the trouble . A Friend 4:57 of Mine was a LRRP in the 101st Airborne in Vietnam. They had captured a large cache of weapons and were informed that command did not want them destroyed on site and could not effect extraction till the next day. They felt that the enemy knew about the discovery and would try to recapture the weapon’s . They spent the night doing reconnaissance by fire , firing the captured weapon’s and ammo including “ knee mortar’s” into the darkness to deter any attempt at recovery.

What you didn't mention is that high-low propulsion system was developed by Germany in ww2 for anti-tank guns (the PAW 600 and PAW 1000)

excellent

*”Oh there gonna half to glue you back together IN HELL.”*

You missed one detail of the 40mm being armed as it takes 3 revolutions after firing within the launcher tube of the M-79... there is a reason for this so when a solider accidentally drops the munition will not explode to cause death or injury... the max range is 400m beside the fragmentation grenade there is other types like white phosphorous and smoke... In the army we trained with M-79s, just for familiarization while the actual M16A1-M203 attached grenade launchers for training using training markers rather than real frags - the targeting aperture is actually called the 'Leaf-Sight'... I was at Ft. Dix back in 1987 for boot camp - the only live munitions we used was 5.56 NATO, .50 cal BMG, 7.62, and live hand grenades... everything else was non-live training munitions or simulators... claymore mines we used real detonators [wired blasting caps] for training but the mine itself was a dummy... still wired blasting caps were dangerous can remove some fingers or even the entire hand from 'static' energy - have to be well grounded when using wired caps... training grenades used live fuse detonators as well - I and a few others were assigned to screw in all fuses and also load all 20 & 30 round magazines with fresh ammo including tracers when we had night fire exercises. Spent 8 years in the army... got out as the Clinton Administration was destroying and reducing the entire military and cut programs and pay to freezing promotion slots to slow and reduce E-5 & E-6 slots and NCO school intake - I had enough of the BS and ETS out.

wonderful

0:22 m79 (a grenade launcher) RPG 2 (anti tank weapon, not a grenade launcher) Type 89 mortar (definitely not a grenade launcher)

The guy who had made the. M.79 must have been sick and tired of being called a wimpy person who can't throw a grenade for s..t to save his life

i love this thing

that rotating alignment fuse sounds tricky.

Dying to know how those soviet caseless grenade rounds works

We used them here in the Angolan War. It's nickname was the "snotneus" (snot nose).

Суперский обзор! ХОЧУ такой гранатомет!!!!!!!!!!!

All i can picture, is the stoned black guy in apacolypse now, who fires one grende shot, and then the enemy fire stops... He knew his weapon, knew how to place the shot based on sound distance, and he was close enough, like they say about horseshoes and hand grenades. The thump gun also had its moment in terminator 2, which also displays the smoke firing drum launcher, that the terminator uses on the swat team I think imma go watch some movies now

Love the M79. Carried one for a while in RVN. Kept it loaded with a buckshot round for 1st contact. Flechette round was not very effective.

It's not "millimeters", just "millimeter" in this instance.

You have to have some real balls to use that knee grenade launcher 😭💀😳

Ideal for consumer drones

Carried a M-79 in Nam, also had side arm Colt 1911A1 .45 cal. pistol.

I absolutely hate seeing "knee mortars" pictured where a person has it braced against their leg. Absolutely no one did that, unless they were incredibly stupid. The recoil impulse from that would shatter your thigh bone!

rpg: rocket propelled gernades

Have not seen one of these sense the 70's.

danke für deine arbeit

💯🔥🔥

always wondered why when you shoot the GL straight at the ground it would not explode i would yell all the time "cheap grenade" an would be like this damn thing only works when you shoot it at some one. but its because the orb has not spun in to alinement with the striker pin AMAZING !!! THXFOR SHOWING THAT

CAn't wait for neXt VId

It works by dislocating your shoulder when you fire it!

A friend had his hand over the muzzle of an M79 when it fired accidentally - that arming mechanism saved him from losing his life - just a nasty dent in his hand and a bruised ego....

'go get The Roach'

I love when my grenades fly stab-ly. And they stably my enemy tank with a properly ignited catridge.

So, the m79 is a rifled grenade round I know rifling makes any weapon more accurate and travel farther, but i assumed the thump gun just lobbed grenades, i naively never even considered it was a rifled round.