Well there you go. Catastrophic AR failure. Apparently the guy was shooting some would and things went bang.
Part 1: http://imgur.com/a/fLV2W
Part 2: http://imgur.com/a/Jsics
Part 3 the commenting: https://www.reddit.com/r/guns/comments/455pov/whelp_at_least_i_dont_need_to_worry_about/
and the bolt carrier
Go fuck yourself
That was one guess. Other guess was a seriously overcharged round, possibly combined with failure in the metal.
Last one but here's a link the a1 maintenance manual for troops: http://imgur.com/a/ByQ8m
Welp, there you go.
wolf is dirty ammo, the steel doesnt expand in the chamber all the way to create a perfect seal like brass does. after a while, carbon builds up in the chamber, im guessing this contributed to an out of battery detonation, where the cartridge was fired while not fully seated in the chamber
>could have also been shoved in by the recoil spring after the explosion
How could it go back into battery when the BCG and receiver is blown apart and not able to correctly guide the bolt face to the chamber?
You don't know what exactly happened.
It could have been over charge.
What also could have happened was that he fired the gun a lot, was getting jams, then started oiling the shit out of the gun and accidentally or unwittingly, got some inside the gas tube causing this bullshit.
I wouldn't have thought of that if I hadn't seen it myself.
This guy at my range was having jamming issues with his AR, and his response to that was squirting oil into the open chamber. He didn't even take it apart, he just locked the bolt back and squirted a bunch of oil in there.
Wolf ammo, case solved. Notice how part of the bolt is still stuck in the chamber
WHAT! This is retarded. Water in the gas tube would not cause that. Water in the barrel and upper would.
There is not enough volume in the gas tube.
>Water in the gas tube would not cause that
Except it does.
The US army has known about that since the 60s.
Which is why M16A1 manuals explicitly state to take extreme care to get all the water out of the gun before firing it after it has been submerged. It's also the reason SEALs liked simple blowback SMGs rather than gas operated rifles.
God, I haven't seen that video in years.
Unless I am mistaken, the Colt in your video fragmented the receiver (which is not designed to handle much outward fluid pressure), but not the bolt carrier, as in OP's post.
Hold the phone.
Time to scrap the entire M4/M16 series. And we should all stop buyung AR15's. Clearly they are just exploding at random now without any user error.
I think it's time the american-military went with the superior AKM platform.
Thank you for this wake-up call, OP.
>Believing H&K garbage
>German techno music
The gas tube had nothing to do with that failure. It is water in the barrel, not the gas tube that caused the malfunction.
The piston just vents the water in the gap where the gas block and piston rides, that is why the H&K does mot fail.
The M4 fails because it creates over pressure because all of the water in the barrel cannot go through the gastube.
Also notice how quick he is shooting both rifles. That is because he wants to keep as much water in the barrel as possible. If he waited just a moment, it would not matter.
If you shot a rifle with empty barrel and a gas tube full of water and I guarantee it wont do anything.
>The US army has known about that since the 60s.
It has been known since the first rifles where invented that if you stuff enough shit in the barrel, there will be problems.
The gas tube does not have enough volume to cause a KB even when filled with liquid!
I know this is hard for a no-guns to understand. Maybe if I could type slower, you would be able to process this information.
Fuck, unless someone here is actually a materials engineering major with a history of designing rifles, then we are likely talking out of our ass.
Assuming the guy did not fill his rifle with fluid at the range before blowing it up, what is the likelihood of Wolf replacing his rifle?
How about fucking common sense. The reason we put condoms on the barrels of our rifles. To keep sand and water and shit out of them.
The gas tube has zero \ nothing \ nada to do with it.
You can shoot an AR15 under water, does it KB? Obviously the gas tube is filled with water!!!
The reason he can shoot under water is because the pressure is normalized around the entire weapon. It is still a bad idea, but notice there was no KB.
Also the shorter barrel of the HK would keep the pressure lower, because there is less resistance.
>AM I THE ONLY ONE WHO GRADUATED MIDDLE SCHOOL HERE
Pretty much. I doubt it had anything to do with water in the gun, don't know how the fuck these autists got on that topic.
In the pics the blown up gun looks pretty dirty, I bet the gas tube was occluded from shitty maintenance.
200% because of wolf.
Dont start a meme fight unless you are willing to bet your SOUL!!!
I know it is hard for you to think beyond anime girls and lgbt pic of mario, but there is no documentation saying that an obstructed gas tube. Filled with dragon cum lub, or water will cause a KB.
Find a legit source where a gas tube obstructed with water caused a KB.
Then you prove me wrong. You have offered nothing in terms of real information
well, clearly what happened is, over pressure caused the bolt to break and crack the receiver extension, which explains why the guy couldn't remove the bolt.
since it is carbine gas on a 16" barrel, the bullet was still in the barrel while the way over pressured gas was traveling into the carrier. since the carrier couldn't move back because of the broken bolt, the carriers chamber, being sealed off by the gas rings on the bolt, just kept being pressurized with no way to vent until it finally exploded.
this was caused by either a round filled with a fast powder(pistol) or by a squib round past the gas port and the next round having no where to push the gas.
my guess is a hot round, busted chamber, and a squib past the port.
there, i solved it now give me my prize.
you could literally weld the gas tube shut at my receiver end and it wouldn't blow up.
So what is to prevent Wolf from throwing up their hands and saying "Caveat emptor." They don't have the most stellar record in the industry, so internet fall out probably doesn't mean much.
>it was caused by the pressure having nowhere to go
>you could weld the gas tube shut and it wouldnt blow up
do you know what gas systems do?
Lets not. Remington actually makes some pretty good loads.
You'll get the amount they could worm out of in small claims court, which means that you won't see more than a compensatory amount unless bodily harm was done.
Off topic, but I've also seen some shoddy loads for Remington on their 9mm UMC line as well. Granted, I haven't seen any crap on their rifle ammo so far.
I wasn't looking for a pay day. Just recommendation for a lost rifle. Again, assuming the owner did not fuck up here.
yes, i even have ass hair maid of steel wool to prevent entry. no object on this earth can penetrate my anus's defenses
they could but it's only like $1,000 for the gun so it's smarter for them to just give the guy money for a new gun and recall that lot of ammo.
yes, when i replied to you i was talking about the gas tube being the only thing closed off, the bullet still goes out the muzzle like normally and all the gas goes with it.
now, if the barrel is blocked at the muzzle and the gas tube at the receiver, then the gas tube would burst, probably the barrel as well.
but if the muzzle is clear than the gas can escape back out the muzzle and nothing will happen.
i can block the gas at the receiver end of my ar and all that happens is i go from semi auto to single shot.
yes the gun would fire a round downrange but the gun is also not designed to operate without the gas system intact.
how fucking hard is this to understand?
go block your gas system and fire it, let me know how that goes for you.
>gun is also not designed to operate without the gas system intact.
Of course it fucking won't, it will be single shot. Otherwise, as long as the bullet leaves the fucking barrel, there is no excess pressure past what the gun is already designed to handle in normal operation.
You do know there are receivers with adjustable gas taps at the receiver end right?
>Otherwise, as long as the bullet leaves the fucking barrel, there is no excess pressure past what the gun is already designed to handle in normal operation.
the gas system uses some of that pressure to cycle the action, and the gun is designed to operate with the gas system intact. blocking the gas system can and will cause a catastrophic failure
>go block your gas system and fire it, let me know how that goes for you.
i do that, nothing happens.
no, it won't.
as long as the gasses can go back out the barrel, there will be no catastrophic failure.
>into a tube full of lube
nah, the problem was too much gas, moving too fast, and going into a chamber that moved just enough to let more gas in but then didn't move anymore so the pressure built up massively and the carrier went boom.
if the gas had time to equalize then the gas tube would pop, but it didn't, so it didn't.
>hurr i am wrong but i will just call him a tard
>that makes me right
look, i can block off the gas on my suppressed(so i have oodles of extra gas) ar at the receiver and it doesn't blow up, it just doesn't cycle.
do you realize your arguments keep contradicting yourself?
how so, friend?
if the muzzle is clear then the blocked tube will just send the gas out the barrel.
if the muzzle is blocked and the tube is blocked at the receiver, then the tube will burst.
explain how i can block the gas at the receiver and my gas tube doesn't pop?
>>28881049 and >>28881091 are right about the gas tube, as long as the projectile is leaving the barrel you could quite literally weld the gas tube closed or insert a dowel in the receiver extension preventing the carrier from unlocking and moving rearwards.
A soon as there is is a blockage in the barrel only then do you run into an overpressure situation. In the unblocked barrel but blocked tube or dowel situation the gas system reaches the same pressure within the barrel then stops pressurizing as the bore pressure only continues to drop as the projectile moves further down the barrel past the gas port. It is designed to work under these pressures, nothing out of the ordinary.
A 16" barrel where the bullet clears the bore only has ~7,500psi of muzzle pressure and a carbine gas system is at 7.5" which is still only ~16,500psi whereas at the case mouth 5.56 chamber pressure is ~54,000psi once again assuming the projectile travels down and out the barrel normally.
I don't know the math behind the maximum volume of expansion of a standard load vs the volume of a blocked/capped 16" barrel, but you can expect that Colt 6920 which is going to be based off of a hoop stress safety factor of at least 2 for the 4150CMV it is made out of as they are military profiles is far stouter than the much weaker metal 8620 carrier or 7075 receiver. As soon as you stop the projectile from exiting the barrel, that is where you encounter your overpressure in the gas system but it wouldn't be catastrophic yet as long as the bolt is able to unlock and relieve pressure.
The assumption for this case is both the barrel and the recoil system are blocked. At that point the barrel and gas system become one giant pressure vessel and the gas/recoil system will let go long before the barrel.
>The assumption for this case is both the barrel and the recoil system are blocked.
this, i assume the bolt couldn't rotate because it's is stuck in the barrel and the barrel extension is cracked. the only thing that i could think of that could cause the barrel extension to crack is a hot round or a bad head space.
Thank you for doing the math I was looking up
This discussion has given me an idea though. A "safety" system for Brits and those stuck with straight pull ARs with no gas system. Basically a blocked gas tube that will rupture in a safe direction in the event of a squib. Then, if one were so inclined, a few minutes with a drill and an actual gas tube could reinstate semi-auto function.
that would be easy to do, the hardest part will be making the gas tube that will burst just after safe pressure and with enough volume to release enough gas so the barrel doesn't explode.
you would also have to place the port as close to the chamber as possible so there is less of a chance of the blockage happening before the port.
This is indeed an interesting one since most catastrophic failures of the receiver are either out of battery, or an extreme overpressure at the chamber where the case head lets go and detonates the bolt head.
I'm curious if it can be deduced that that bolt was locked in the fractured extension and then fired or if it fractured during the failure and the bolt did not unlock due to another reason.
>Also the shorter barrel of the HK would keep the pressure lower, because there is less resistance.
>the pressure lower, because there is less resistance.
>AM I THE ONLY ONE WHO GRADUATED MIDDLE SCHOOL HERE
It's like you don't even physics
>locked in the fractured extension and then fired or if it fractured during the failure and the bolt did not unlock due to another reason.
it's possible that the extension was broken before but my guess is it all happened on the same round.
i doubt we will ever find out but it's fun to think about.
In my expertise.
I point all finger and suspicion to something that cause carrier to experienced waay more pressure than normal.
One real answer is weak primer flattened/collapsed and fail as internal explosion gas blow through primer hold and into firing pin hold and filled carrier with pressure only seen in chamber area. The exploding gas also went around the bolt and subjected extension to pressure it was never made to handle a explosion instead of just back thrust force of bolt lug against extension lug.
Tripfag internet reputation
Also i have seen giddyfuck/GODOFMAUR's guess >>28880876
But hahaha my primer failure diagnosis is much more likely and realistic.
Primer failure is common because of usage of wrong weaker primer for high pressure rifle caliber or simply overpressure round that primer was never made to handle.
Go google flatten primer. Thats what happen before it fail. Flatten primer is pushing the limit.
>my primer failure diagnosis is much more likely and realistic.
mines more fun.
besides, if the gas was going through the primer, it would shove the bolt into the carrier.
Fucked up primer. Ive seen this before when someone used shitty slav-made ammunition. Prvi Partisan or something.
On a colt le6920 too, before colt started going to shit. This could happen to anyone.
To be fair, he was thinking the gas tube couldn't handle the pressure and would burst. An adjustable gas block would cut off the pressure ahead of the tube. He's still a moron though.
No. If all lug sheared the cam would still be there. The bolt will still be as much in the carrier it was already.
Because the AR vents gas into the BCG behind the bolt to operate. So the right kind of failure can lock the bolt into the barrel extension.
Odds are this was a squib and then a hot load, with maybe a side order of excess headspace. The squib helped generate the overpressure scenario, the hot load stretched the case, forcing the locking lugs to bear on the mating surfaces of the barrel extension, cracking them but also resisting bolt rotation. The excess pressure (perhaps exasperated by fluid lock due to excess lube) hammers into the bolt carrier, but instead of caming the bolt through its rotation and then carrying the bolt rearward, the carrier splits, leaving the bolt in battery, and breaks the receiver.
So what we have here is a shooter that thought squib was a miss and that his rifle needed a relube because it didn't fully cycle, who then poured his bolt carrier full of lube and tried again.
If the tube was full of oil, it would have worked fine at the start. But as more and more carbon and stuff blow though, they would stick to the oil in it. Eventually that would have formed too big of a clog and caused a boom. Kinda like an artery that gets build up and then shits a clog into your heart. It is not the first cheeseburger, it is the hundredth. That is the only thing I can think of anyway.
>have a shit where it eats rifle
>get butthurt when it goes full diarrhea
Today's top story arcuckteen still shit after 60 years, in other news water is still wet and flaming ball in the sky is a star. More news at 10
>Eventually that would have formed too big of a clog and caused a boom. Kinda like an artery that gets build up and then shits a clog into your heart.
If that were the case, and your analogy is piss poor, then the only thing that would split would be the gas tube (aneurysm). This wouldn't cause the brain to explode a la Scanners.
>Catastrophic AR failure can be completely avoided by not buying AR rifles entirely, thus also improving the quality of gun ownership worldwide since you're not buying shitty ARs.
>dat Das Boot music foreshadowing that the Germans will win the test
You're a massive disgusting faggot.
Spare your family the hassle of wasting anymore time and energy on your useless consumption of their limited resources and kill yourself.