Video is about m4 Shows m16 in the thumbnail *SEEMS* *LEGIT*

I learned 5 things I already knew about the M4 from the video, and about 50 things I didn't know about the M4 from the comments.

With respect to the ammo. It's more correct to say they changed the rate of twist of the rifling to accomodate the heavier bullet. Either barrel can fire either ammo type, just not optimally.

More like "Five things everyone knows about the M4 Carbine" And I also know that the gun in the thumbnail isn't M4 Carbine.

The M855 is an enhanced penetration round. Not an armor-piercing round. Almost any 556/223 will defeat soft bodyarmor.

Sir the 1st gen of this weapon was called the CAR 15 or Colt Automatic Rifle. It was a stubby of the M-16. Military Dog handlers were issued these awesome weapons in the late 60's and early 70's. Just FYI

I have never fired the M-4 Carbine. I was issued an M16-A1 with a 40mm M-203 grenade launcher during the Vietnam War. It worked well enough for me.

Its amazing to me, a combat veteran myself, that saw several gunfights OIF/OEF, and a WOMAN automatically gets a SILVER STAR for her 30 min gunfight, when MEN of a typical 82nd Airborne Division Combat Unit, who gets into a firefight like that on a regular weekly basis, for the months that they were deployed, are ONLY awarded an Army ARCOM, or a Bronze Star at most, at the end of their tour of duty. DISCRIMINATION MUCH?!!!

"M-Forgeries". lmao. Never heard that one before.

almost as good as the History channel... the sarcasm is real

Shoot any full auto gun long non stop, It's going to heat up too much at some point.

Your series should be titled "5 THINGS EVERYONE ALREADY KNOWS ABOUT _____".

This was posted 3 days ago... I knew all these things

Why are they making it so important that the M4 is desingned for the M855 and the M16 for the M193 while both can shoot both of the cartriges.

i stopped subscribing to the military channel because the content is written for forth graders. i believe the MC is owned by Discovery channel, which explains a lot, i miss the old (hitler) History channel days, TV just plain sucks these days.

During the famous "Blackhawk Down" incident in Somali, soldiers complained of these M855 green tipped rounds that were designed to penetrate body armor as passing straight through the enemy. Since the majority of these enemy were high as kites on "Khat" (which is a plant they chewed and had the affect of amphetamines) check spelling, unless the green tipped rounds hit a majority organ eg heart lung spine head etc the enemy often would just keep coming only feeling the effect of the wound until after.

Was very familiar with M16, I was Vietnam Era to past Desert Storm and can still assemble disassemble the rifle in my sleep. The improved M4 basically a shortened M16 and a very smart concept, take what they already know and change moderately so you improve the function and preserve the soldier's basic knowledge. Very revealing. Also, my congrats to Sgt. LeAnne who bagged all those insurgents. US Army all the way!!! 25 years on my watch and I hope many of you enjoy the same length of career I had a privilege to serve in. Peace soldiers!!!

The M4 is far too busy. They should build an extra lane and improve the junction with the M5 at Bristol.

As far as my opinion of the M4 platform as a whole, I feel it is a valuable tool in our arsenal that has its limitations just like every other tool we have. For CQB equipped with someOf the specialized rounds like the mk262, it has shown to be very effective. However with the standard M855 green tip load, we have seen a number of cases where rounds are just going through and through enemy targets and multiple rounds are needed to stop a threat. This is what initially transitioned some of the other cartridges such as .300 blk, .458 SoCom etc. I feel that for close encounters as well as limited mobility encounters (road blocks, IED sweeps etc) it is an excellent platform and with all of the advancements made in other calibers and such I don't see the M4 platform losing popularity any time soon. Lastly, I can personally attest to the ever changing technology for this platform being a lifesaver; as a close friend of mine is here today thanks to a well placed .458 round that immediately stopped a target who had already taken the last 4 rounds of M855 out of a magazine and was a mere second away from firing a fatal 7mm round when the big SoCom tore into his abdomen and put him down flat.

Being qualified on both the M16A4 and the M4A1 Carbine. It is all based on the situation, the mission. Personally I don't think our soldiers should be limited to just a certain weapon system. Our troops should have a wide range to choose from, based of experience and preferences. Although the M16 series, the M4 Carbine are over all great weapon systems. A soldier and his weapon system, is like driving. Best performance is through experience, comfortability, preference, and situations. For the weapon system can simply be the difference between his life, or the enemies. The weapon system is the soldiers life LITTERALLY! No perfect weapon system will ever exsist.

The M193 round can indeed penetrate soft body armor. The M855 has a steel penetrator that is designed to enhance penetration at longer ranges than the M193 cartridge.

Ok. I'm going to call bull-shit on #3. Both rounds defeat soft body armor, but neither comes even close to denting body armor plates. All center-fire rifle rounds will zip through soft body armor but only .50 cal AP rounds will penetrate plates. Not even 30-06 AP will defeat proper plates. This "green tip designed and defeating body armor" is BS because all typical rifle rounds defeat soft armor, so all the ignoramus' hearing this think green tip is dragon slayer ammo that "normal folk" don't need and therefore we can ban it. This idiocy was stopped last year when ATF suggested they ban green tip because it was AP, but luckily people rose up and stopped them. Let's not push propaganda for the left and say green tip is AP, ok there you?

Awesome vid! Thanks for posting.

The M4 is suitable for combat if you're not using a "spray and pray" approach to combat. Dumping one mag after another isn't what it's intended to do. As the video indicated, it's a light CQB gun. If you want to sustain fire, you need a heavier gun, bigger barrel, etc. And a slower rate of fire would be good too. You can do 300-350 rpm with a good binary trigger. Heck, with just a Geissele SD3G you can get nearly 200 in SEMI auto. Yes, your finger will get tired.

600 meters AREA TARGET!! 500 POINT!! Get it right...

both M16 and M4 rifles are great i had used both in the Army however the M4 is more suitable for close combat. its not easy clearing a building with a M16A2 rifle. My major issue with these rifles are that you have to constantly maintaining them clean and lubed otherwise you will be jamming that rifle. Iraq sand(more like tan talcum powder) gets into everything! that needs to be addressed.

Brilliant vid, keep 'em coming.

My dad said in a prolonged fire fight you set the m4 to semi-automatic so it has time to cool and in a pinned down position you rotate soldiers to the heaviest fighting if you can to conserve on ammo and prevent over heating of their m4 rifles thats all he could figure out because they just don't cool well

The M4 is a great weapon when used properly. I loved mine!

The M4A1 is near perfect. It corrects any flaws the M16 has. Especially the 3-round burst feature. Those Army soldiers used the M4 non stop. They malfunctioned just like ANY other rifle glowing white hot and malfuntioning. The M16 did the same in Vietnam. And is still in service. This has more to do with over use or misuse of the weapon than anything else.

I'm absolutely lovin' this channel

Kyle loves his , it saved his life on 3 occasions and he thanks God for that forward assist .

your female silver star grabbers story was later revealed not to be accurate

The M-4 is designed for cqb, with that being said I much prefer the M-16 on the range. Its a lot easier to hit targets over 200m with an M-16 than an M-4.

Bullshit on #3, m193 can defeat soft body armor just fine. m855 or m193 both cant defeat level 4 or 5 plates.

this is becoming my favorite you tube channel

M193 out of the M16's 20" barrel will defeat level III body armor, out of the M4's 14.5" barrel it will not. M855 will not defeat level III out of either barrel. The reason is the M193's 55 grain bullet is leaving the barrel faster than the M855's 62 grain bullet.

"5 things everyone already knows about the M-4 carbine"

I worked with the m-16a1.The two years in the Infantry,my m-16a1,never let me down.Keep it clean and lubricated and it ran like a deer.

The M16 is great no need to ever replace that system. Just keep on improving it over time.

Any weapon is going to get shitty after such sustained fire. If the barrels were "white hot", I wouldn't expect anything less than malfunctions.

Them good ole mean green tips :D

We were offered the M-16 carbine when I was in the service and after trying it we went back to our regular M-16s. The longer barrel gave us better accuracy but, to be fair, we weren't in close quarters much. The SF team that we trained with loved it for the three round burst but, they also traded us their 1911s for our M-9s. Guess it's just a matter of preference.

Good video... Good presentation... Glad to see some professional presentation for a change.

The M16, AR15, M4 rifle platform does an incredible job and does it very well. So well in fact it's here to stay, no reason to replace it at all. The rifle only requires proper maintenance and replacement of any worn part's! Far more accurate and versitile than it's advisary.

says 10 things you didnt know about m4 carbine thumbnail is m16 "RIFLE" And the extremly subjective title lead me to waste my time learning nothing

M4 is a great weapon, we don't need to replace it, we just need to upgrade it, better, more reliable material, and replace the direct impingement gas system with the short-stroke gas system .

6:18 sounds like a trigger discipline problem to me

My M-16a1 was VERY UNRELIABLE . I served in USMC 1975-1979. The military made improvements to the AR platform, bringing in the shortened M-4 carbine, BUT still not reliable as the AK. LOVE my civilian M-4 as a sporting rifle. BULLPUP is the next evolution of military rifles.

This was fairly comprehensively uninformative for anyone who knows anything about the M4.

At 3:38, the weapon you're holding as you described it - why do I not see the sear pin hole over the select fire switch???

Title: M4 carbine? Thumbnail: M16A1? Me: AR-15? My Dad: *Vietnam flashbacks* Hotel: trivago

*Shows a M16 in the thumbnail*

Personally I think that the currently manufactured M-16/M-4 series of rifles is the best rifle that the U.S. has ever been issued. The fact that the weapons will continue to fire non-stop (even with malfunctions) in a long battle is a testament to Mr. Stoners design. Any weapon will malfunction if not properly maintained or put through a complete stress/abuse in long engagements. But the M-16/M-4 series has yet served our nation for 50+ years and shows no sign or reason to be replaced. No disrespect to other weapons designers or the weapons designs themselves. but the M-16/M-4 platform is one of the greatest weapons ever made. In fact i own an old school full sized Post '94 ban Colt example, and I love the rifle, I also own a Smith&Wesson 15-22 and it to is a fine rifle not only for traingin and target shooting, but for small game hunting and pest control.

The barrels overheating might be connected to the shear amount of ammunition expended. What's the spec for the barrel?

As a US Army infantry Man I love and trust my life with my M4A1. Nothing comforts me more then laying 5.56s down range.

The M4 is a great gun I usually use it on the range and some how it's perfect for Mid range targets and OK for long ranges

The same old arguments that put forth when the military went from .30 Cal/.308/7.72 NATO to 5.56....."Wars have changed...Its all close quarters now..."......."The troops can carry more ammo with 5.56".....Translation.........(Especially during Vietnam...)...."We don't want to invest any extra time and effort to train you to be an expert marksman.....(with 7.62) so we're going to give you a plastic rifle that shoots on "rock and roll" so you don't have to aim much......and its damn cheap to make..... Oh yeah....the new ammo is nice and light so you can carry a lot of it....... What a joke....

During Vietnam Colt also produced the shorter CAR 15 which was used by Special Forces and others. I am sure that this had some influence on the M4.

Are both rounds interchangeable in both rifles? thanks

all I want for christmas is an M4 carbine, and a 20" one too thats all

I served in I corps Vietnam 67-68. I had a choice of a M16a1 or a M-14 with selector. I picked the M-14 and it was the best thing I could have done. M-14 was by far superior to any M-16 ever produced. I could take out things with one shot that took three by an M-16. The 7.62x51 round will go thru an 8-10 inch tree and still take out charlie on the other side. The M-16/M-16a1/M-16a2, M4 are all pieces of junk when it comes to a fire fight, and while things are happening the few extra pounds don't make any difference. Yeah I carried as much ammo as most guys did with a 16, but I never noticed the difference. Other than an M-14 the only other rifle that is any good is an FN FAL, an they issued 30 rd mags with these. And by the way having a selector on my weapon I could use full auto and support the rest of the squad, either on a bi-pod or from the waist I could keep it pretty well on target. This country should have never went with the M-16 or the 5.56 round. Big mistake. But like everything in this country the all mighty dollar dictates what our people will use. Always has always will. The M-14 had the shortest issue life, why, because not alot of money could be made. Oh another thing the 7.62 cartridge is to much for woman and the sissy-boys to handle. This country should adopt a weapon similar to an AK and with similar ammo. Israel makes a good weapon, just beef it up and use a 7.61 round just a little shorter, not as short as th standard AK round but something in between.

They got white hot during the firefight because their barrels we're already shot out in multiple deployments and then reused in training before that particular squad ever left home. The rifles should have been gone through and rebuilt/refurbished before shipping out over seas. DOD never puts enough emphasis on refurbishment and proper maintenance schedules.

can it still shoot the m855 green tip armor piercing round if its the civilian version of the m4?

I think you should speak to some men who have actually been in combat about the penetration capabilities of M193 vs M855. The fact of the matter is, from a 20" barrel the m193 has enough of a velocity advantage over the heavier & slower m855 coming out of the short 14.5" barrel which equalizes the playing field. In the real world, (read: in combat) there is no body armor the m855 fired from aN M4 will penetrate that the m193 fired from an M16 will not. This is all hype, and I personally think you are furthering this myth by repeating that statement. The new M855 rounds are a different story, but the cold hard fact is that green tip M855 and M193 are both equally capable at penetrating most SOFT armor from standard barrel lengths and both equally incapable of defeating hard body armor from standard barrel lengths. Moving along to a 24" barrel in say a Rem 700, and standard M193 can defeat hard level 3 plate armor due to sheer velocity. The green tip round with its steel penetrative tip is merely to keep the lead core from fragmenting on thin materials such as sheet metal automobile panels, auto glass etc. That is the extent of its capability and it is NOT an armor penetrating round.

Isn't guns like the Scar, ACR, f2000 or HK416 more suited than the M4? i mean in tests the Scar did out perform the m4

M855 green tip can only be armor piercing when fired through a 18 inch barrel as it's original intent. That's a big reason why the m855 is kind of ass with the carbine.

Long before the M-4, there was the CAR-15/XM-177 (Vietnam era). The M-4 isn't a "new" weapon, just improved.

this video sucks. 1. the thumbnail shows an m16 2. this video says what I DON'T know. well, it's a carbine. which means shortened version of a said rifle. which means that all carbines are designed for cqb. so why is that included? 3. no its not always used with green tip ammo. in fact. it rarely is. 4. no its maximum effective range on its own is only 300m. 600m only with a SAW, in a squad level. 5. no it doesn't offer more effective fire at longer ranges than the m16. the m16 is literally the exact same rifle just with a longer barrel ffs. 6. of course the m4 has pretty much the same parts as the m16. that is because it is the CARBINE version of the m16 7. the m855 Greentip round is not an armor piercing round but an enhanced penetration round. 8. both cartridges he described are both 5.56 x45mm NATO and can be used in either rifle. that doesn't make the m4 better because it has nothing to do with the m4. they did tighten the twist rate of the m4 to 1in7" twist but they did the same on the next version of the m16. this helps the rifle propell a heavier bullet more effectively by spinning it faster. 9. a heavier barrel does not help to dissipate heat. it simply absorbs more heat. stays more rigid. and warps less easily. 10. how do you know? 11. They're called ar-15s. which were designed by armalite originally in the 50s. this design was sold to colt who made the m16 and m4. ar-15s are not m-forgeries because the ar-15 existed long before the m4. 12. any rifle can get white hot from too much shooting and therefore malfunction. this doesn't make it inferior. 13. if you're going to make a video. get educated on the subject first

I think the government should get rid of the M4 and sell them all to me.

Crazy fact: When Eugene Stoner was looking to offload the Armalite Rifle (AR-15) to someone who could mass produce the rifle. Ruger passed on the design, allowing Colt to swoop in and buy the rights to the AR-15, and sell it to the D.O.D.

Whats the song thats used at 1:55 ?

All combat rifles in mass production have their melt-down point. What stops this is tactics, stress innoculation training, strong field command leadership and position and fire superiority in the theater of operation Sectors and cyclic rate of fire control is the safeguard against melting barrels, etc.

I used the M4 in Iraq under a DOD Security contact I loved the M4 it is light compact and can easily engage a target out to 600 meters with a good tactical scope

Great video, only one thing I didn't know though

What brought me here. I'm a plumbing contractor, know little about guns other than I bird hunted for 30 yrs with my uncles. My youngest (knows a lot about guns) joined Navy in 2019...was issued an M-4 last week for Flight Deck Watch. I'd love to empty a few mags. Hooyah!

carbeeeeeeeeeeeeeeeeeeeeeeen ?????????????????????????

One of these days we will get away from the direct impingement system and switch to a gas piston system.

I always liked the enhanced version of the M-14 with its 7.62 round -reach out and touch somebody.

the m4 might be useful in some cases of urban fighting but for clearing a structure I am a shotgun man myself.

Come on.. Everyone knows basically the whole US special operations uses the M4. I think the M4 is good, but there are many other rifles that are way better for service. Try looking at a proper bullpup for example. It would be way more compact.

with my little experience with the m4 (4 years of shooting multiple ar15s) if you cheap out and buy a cheap shitty rifle you get what you pay for and its going to have FTF but if you get a decent one and not cheap out you will have an amazing shootee

I've sometimes wondered about the danger of ricochets when spraying a room with automatic fire with the 5.56 round. Is that a problem? I've wondered about the dangers of ricochet when stepping into a room and spraying it with automatic fire with a fast, light round.

I would love to know the song at number 1 when he's talking about it being built for cqb; I love that guitar. I wonder if it's their own music or a song.

Just picked up my Ruger M4 556 today!

Loved my M4 i was issued when i served, and the accuracy was good even with the bad sight we had on the rifle, the guts would sometimes need to be re-calibrated or go out of alignment after heavy fire, thankfully they upgraded those later on but i had done my service at that time and have since stopped with the military so never got to use a holo sight on the M4.

I recently purchased a brand new M4 from Gander Mountain, and I must say that of all my other rifles, pistols, and shotguns in my collection, the M4 is the most fun to shoot. It is also incredibly easy to field-strip for cleaning. I highly recommend the M4 (or any other AR15 style rifle or carbine) to anyone who can afford one (I paid about $930 for mine) and legally own one. I also bought a new Aimpoint PRO red dot optic for it, which was about half the cost of the M4! But keep in mind that you will pay a lot for a quality product, and Aimpoint makes top-quality optics.

Nice video. I have been carrying the M4A1 for years now with no issues whatsoever.

Effective range of 600 meters? hahahahahhaa

Title: m4 carbine Thumbnail: M16A1

video title: things you didn't know about the *M4* video thumbnail: shows an m16a1

I never had one in the Marines, we had the M-14 and M-60! But the M4 looks really cool I would love to own one! God bless America, Semper Fidelis forever! Oohrah

Fired about 200 rnds during firefight and my M4 started to malfunctioning. I think an M4 if brand new will sustain the rigor test of 2-3k rounds. But after multiple deployments and a few thousand rounds the M4 become not as reliable.

this is my favourite gun ever

They already had an M-16 carbine for 25 years by the time they "introduced" this weapon. It's essentially the same weapon. 95% anyway. The army loves to slightly change the M-16 and give it a whole new designation.

Maybe add a heavier, quick-change barrel to allow more continuous fire and to prevent the barrel from melting. And perhaps issue either quad-stack magazines or drums to those with this M4-LMG

sucks that our military can't afford a better AR15 with a gas piston system (LWRC now own by Colt)

Any weapon that would melt down in a prolonged fire fight while in the hands of our Military personal depending on that weapon for their life, should be scrapped for junk, And we should develop a weapon worthy of our military personals willingness to put their lives on the line with that weapon, Any weapon our armed forces takes into battle should never have catastrophic failures under any circumstances in combat,

I have two M-4's, and I hope in the future that the front rails are upgraded to being made of Blue steel built to attach a good grip, sight, and scope. I have no problem with the lower receiver on any brand of AR-15. It's just that the front rail should be made to work in all conditions, for example water and dirt with out any problems with the gas tube when firing the weapon.

I believe if the military upgraded the rifles to where they had mid length gas systems it might help midi gate the heat to the barrel and gas system and be able to fire different bullet weights