K9 Malfunction

[Kinetic]

This happened yesterday at the range. This K9 is has about 700+ rounds through it...always cleaned/lubed after firing. I shot 110 rounds wonderfully just before this occurred. Last round in the magazine made a big bang. I was stunned at first and didn't know exactly happened. I had to glance at my thumb to make sure it was still there...quite painful. Set weapon down and notified range staff...they couldn't help free up the jam, so here I am. I cannot free the jam without tools. The magazine will not eject either. I cannot tell if the bullet head left the casing.

The ammo is Remington FMJ that I bought at Walmart. The magazine is brand new from Kahr. We never found the top black piece to the magazine, but I found a little narrow metal piece that I can't identify (in pic). My CTL grips are destroyed. I had metal slivers in my arm. I honestly don't know what happened as I've never experienced anything like this and I only shoot factory ammo. The K9 always functions great.

I'm not sure what to do here. Should I box this thing up and overnight it to Kahr. Moving the weapon forward and back...I can hear some metal moving around.

[ripley16]

The small metal piece is a pin that fit behind the extractor, (which is missing from your K9). It is one of a total of three parts, plus the extractor, that fit inside the slide.

Looks like the laser is kaput. I'd keep the box of ammo for the info it contains. To be safe, it may be best to send the pistol back to Kahr. I'd send these photos to them and ask for guidance and directions.

The case failed and the primer blew out. May have been a over-charged round.

Here's a photo of the four parts in the ejector channel.

[yqtszhj]

That's disturbing. I think this is the second report of Remington UMC having issues lately. I have the 250 round box of .45 and the 250 round box of 9mm now. The .45 seems a bit weak and it doesn't run well through my Kahr. I haven't shot any of the 9mm yet...

[pinehtr]

I had this happen with Remington 22 Golden bullet's.

[b4uqzme]

I had this happen with Remington 22 Golden bullet's.

Yikes. I got a box of those. I'm gonna go out and shoot 'em all and make sure they're OK. Glad you didn't get hurt Kinetic.

[RRP]

It looks like the cartridge did not fully seat into the chamber. That allowed the unsupported side of the case to blow open and the resulting blow-back damaged the gun and magazine.

I would say the gun definitely needs to be repaired by Kahr or an experienced gunsmith.

What caused this? Well, one could speculate that the round was out-of-spec, and therefore did not chamber properly. But even if that was true, the gun would not have gone into battery and the primer should not have been activated.

There could be an underlying problem with the striker mechanism. It's possible the firing pin was stuck forward and detonated the primer before the cartridge was fully seated.

The more I think about this, I would want Kahr to inspect this gun to determine what went wrong. The question I would ask them is why did this gun fire before the breech was locked?

[kerby9mm]

Did this happen after the trigger was pulled or waiting to pull the trigger. If the striker broke on the previous round then it could have been stuck or bent in the forward position (sticking out past the breechface) & caused the early discharge.

[ripley16]

...therefore did not chamber properly

Being unsupported would not cause the primer to blow out like that. I think that is the main indicator of an overpressure round in this case. Interesting that the slide cycled after blowing out the magazine and the left grip panel. Good thing it was the last round in the mag or your thumb may be in worse shape than it is.

[jocko]

My 21 cents here. I think it was a bad round. If the cartridge didn't rfully seat in the chamber, then the slide would not have returned to batter and you would have had a no fire, as the gun was now out of time.

The fact that you have had over 700 rounds down range and no issues would tell me BAD ROUND. . I certainly don't think this is a gun issue.

If the gun is in warranty, why not just send these photos to Jay at kahr and ask his advice on what to do. as far as checking to see if there is a bullet inb the barrel, which I doubt thereis just shine a light down and u shoyuld be ableto tell or sick a pencil downt he barrel and see where it stops. If it stops like at halfway downthe barrel, assume sumpin is in there yet.

U have lost the CT for sure, but again if u send this photo to CT even, they are a great company and they might take sympthay to u and replace it either free or at a hell of a discount. U have nuttin to loose. I would also send that photo to Remington fortheir evualation along with the box id number. Cover all ur bases, U might be surprised...

[RRP]

Being unsupported would not cause the primer to blow out like that.

It could if the primer was struck before the breech was locked.

We agree that overpressure caused the primer and sidewall of the case to blow out. What we don't know is what caused the higher than normal pressure.

You speculate that it was a bad round. That could be true, but even if the round had double the normal charge, the primer and sidewall would not have blown out, if they were fully supported by the chamber and locked breech face. The primer would have no place to go, if the action was locked.

This is why I am inclined to think the round detonated before the breech was locked.

Alternatively, the higher pressure could have resulted from an obstruction in the barrel. If the round preceding the last shot was a squib, I don't doubt the primer would have blown out as it did.

No one will know for sure until the gun is disassembled and inspected. All we can do is speculate.

[jocko]

my 21 cents. if u had a prior squib, and then a live round behind it, the barrel would have buldged or split. I am just basin my opinion on the prior range time and zero issue. I don't buy the bent striker pin at all. Being the striker is totally enertia fired, I see nuttin making that striker pin from sticking out and staying out, let alone if so how would that casing ever get intothe chamber, It certainly would not line up and slide between the extractor and breech face. Again my specu8lation but IMO it was a bad round, as far as what happened tothe primer. maybe it was an extremely bad round. What a violenbt explosion like that happens, there is not true prediction of how that casing is goona look IMO
Once that slide is move a 1/4" the striker is now behind the cocking cam and cannot go forward, any out of time gun will not allow the cocking cam to block off the striker block and u just have a free sliding striker that has zero spring enertian behind it.

course alot of specilation on my part to, as well as others comments.More than likely we will never know . IMO certainly no fault of the guns operation.

[RRP]

my 21 cents. if u had a prior squib, and then a live round behind it, the barrel would have buldged or split.

I agree with that, Jocko.

But until the gun is disassembled, I can't be sure the barrel hasn't been damaged.

[jocko]

i would

I agree with that, Jocko.

But until the gun is disassembled, I can't be sure the barrel hasn't been damaged.

think u outta be ableto see or check to see if you have a squib in the barrel. It ain't gonna leave the barrel if it was indeed there.....

[RRP]

What I meant is that we can't tell from his photos, if the barrel is damaged or not. Most of the barrel is concealed by the slide.

[Bawanna]

Could be why he can't get it apart too. A bulged barrel. I had a G21 Glock brought to me about 2 months ago. Squib round with one behind it. Range guys couldn't get it apart either.
I finally basically beat it apart. Gun is ok, barrel is toast.