Video of AR15 misfire mag explode

Did you see him hammering on the charging handle? His ignorance caused the "backfire". /ubbthreads/images/graemlins/crazy.gif

(edit) Ahemm! Make that "forward assist" /ubbthreads/images/graemlins/smiliesmack.gif
 
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He had a squib, stuck a bullet in the barrel, then chambered another round, hammered on the forward assist to get it fully chambered, which was his second warning something wasn't right, and then he fired, do something stupid and it comes back to get you. I bet that guy with him was glad he got out of the way before he fired!
 

A prime example of a self-regulating species /ubbthreads/images/graemlins/crazy.gif

Axiom #1 Of Firearms Safety

If something doesn't "feel" right, "look" right, "smell"
right, or "sound" right, STOP SHOOTING, clear the firearm,
and closely inspect for clear bore, and chamber, and to
be sure it properly goes to battery.

In watching this video I started cringing when they slapped
the mag back in, and charged the weapon. I particularly
liked the slapping the charging handle part. Once again
they proved that the AR-15 is a solid platform, that can
bring shooters through some ignorant act. I wonder if the
shooter will have a permanent flinch /ubbthreads/images/graemlins/shocked.gif

Squeeze
 
Could have been a squb, but even squibs make some noise. (Have had it happen in pistols) Just sounded like the hammer hitting the firing pin to me. Who knows. Could it have been a case head seperation?
 
I've got some great pictures of what actually happens to the parts of the AR when something like this happens.

I believe Wingman is correct, there was a bore obstruction of some sort, probably the bullet from the first misfire.

When the second attempt went off, the two bullets were shot down the barrel with EXTREMELY high pressure. When the bullet(s) crossed the gas-port, high-pressure gas pressurized, and overloaded the gas-system. The result is the bottom of the bolt-carrier being blown away. The two grooves in the bottom of the carrier that the magazine-lips ride in are perfect "serrations". The bottom of the carrier blows right down through the magazine and mag-well.

The bolt and barrel-extension probably held, the extractor was probably turned into a "banana" by the molten case-head trying to escape!

Here's a picture of a bolt-carrier that went through a similar failure.
m166.jpg


Here is a picture of the bolt and extractor.

m161.jpg


And here is a photo of the case-head. Notice the case-head "flowed" to fill the bolt-head and escaped through the only weak point, the extractor.
m163.jpg
 
Being in Law Enforcement, they train us to make it a habit of 'tapping' the forward assist a couple times after racking the charging handle just to make sure everything seated correctly. Our instructor is a 15 year SWAT veteran who has been to many instructor schools in his time. I dont remember him telling us that it requires you to slam the forward assist. That should have been a sign something was wrong.
 
i don't know if eugene stoner intended for his design to redirect expanding gases safely, but the ar15 sure does a pretty good job of it.

if the guy wasn't trying to be a big man for the camera and tried paying attention to what he was doing, it probably could have been avoided.
 
"you can't fix STUPID" (Ron White)...love that line!

The shooter looks like a prime candidate for a Darwin Award.

Google it & you'll get the drift....
 
Quote:
Did you see him hammering on the charging handle?


No, I didn't.
It looked like he was bumping it with the palm of his hand. Was that bad ? I don't know anything about ARs but that didn't seem like a lot of force to me.
Straighten me out.
Thanks.
PC
 
I didn't see any "hammering" the foward assist. He was tapping on it after conducting an immediate action drill just as the military and other tactical rifle courses teach.
 
that bumping with the palm of your hand is PLEANTY of force It's like you grabbing a stick and "tapping" the bolt closed on your bolt gun... NOT something you want to do....

If the force of the spring from using the charging handle won't seat the bolt with a round properly. It's WARNING TIME!

The FA just makes a bad jam worse. I never use it. If I do I have other problems I need to be worried about.
 
That forward assist was made to close the bolt in a combat situation when the gun fails to fire because it is fouled from shooting and you can't stop to clean it, Not to close the bolt after a squib or other type of failure to fire.
 
Wow that is a little bit on the scarry side. Moral of the story check to make sure misfires didn't leave the lead in the chamber.
 
One other possibility, the second round ran into the stuck bullet, when he hit the forward assist it could have forced the bullet to set back in the case, increasing pressures even higher, which might explain why this KB was so voilent, I've seen videos of other KB's on AR's, this one was more violent than usual.
 
Train the way you fight, fight the way you train. When training for a tactical rifle, you train to do things consistently. If you get in the habit of using the forward assist whenever you do a failure drill or a load, it will be an automatic action when in an active shooter scenario.

As an example, while doing some firearm retention/takeaway moves in a defensive tactics class recently, some people were yelling "bang" when they would fire. Instructor said to stop saying that, stick with standard verbal commands and using the trigger as needed, as there have been cases where people were trained to say "bang" in training that it ingrained in the brain and in an actual shootings would say "bang!" instead of actually working the trigger.

Also, in listening to the sound of the round that ejected and hit the bench, it hits with enough thud that it sounds like a complete cartridge and not just the casing. It's quite possible there was something else jammed in the bore as well.
 
in shape guys with high and tights and an AR... Variation of SPORTS for the malfunction. Even tapped the forward assist 3 times just like they teach you in Basic. Not to mention he seemed pretty competent with the gross motor functions on operating an AR. I'm going to guess military.

In the end you can't really tell what happened sense you can't tell if the first primer fired or not. Sounded like the misfire still had the bullet in it to me though. If thats true, misfire followed by ?case head separation? makes me think cheap gun show reloads.
 
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