Another Glock "KB" This time in 9mm

M

Mr.RevolverGuy

New member
Whether a fan of Glock handguns or not, most would agree that the Glock “KB” (“Ka Boom” phrase coined by journalist Dean Speir) is a phenomena that will simply not go away for Glock. On many firearm related boards it seems that I am seeing some sort of Glock “KB” headline once a month or so. For those few that have been fortunate enough to have not experienced one or have ever heard of one a simple google search for Glock “KB” or Glock Kaboom will make your head spin. A quick visit to TheGunZone will provide plenty of information for you to familiarize yourself with a Glock “KB”. They have put together a detailed analysis of a Glock “KB” and possible ways to prevent such from happening, it is worth a read.
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More details and pictures
 
What we know:
1. A Gen 4 Glock 17L Kaboomed —
Click to expand...

There is no such thing as a Gen4 Glock 17L.... :confused:

I can only assume you mean Glock 34? That's what it looks like from the photos.

The ammo is at fault. Not the gun. This was a severely overcharged round. Contact the manufacturer. They owe you a new gun. They have insurance for just this kind of thing.
 
A quick visit to smith-wesson forum.com will show you a ton of M&P shields doing the same thing, been watching them appear over and over for the last year, though most are in 40sw not 9mm

Gen 4 17L ......lol
 
"Here you can see the glock bulge due to over pressure and lack of case support"

Who wrote this ??? That picture is NOT a glock bulge, I'd gladly send you some pictures of a glock bulge if you like, they create smileys in the small area of the chamber that is unsupported, not an Even all the way around ridge....
 
You are right M&P's are experiencing the same problem. But like most are pointing out it is related to ammo.

I am not bashing Glock, I am just saying it happened.
 
I believe ya it happened, I'm just curious if the glock bulge case shown came from the gun, same shooting session.....???

I'm getting some expert opinions now but I'm curious as much as anything
 
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What is the ring with the exploded case? Is it brass from that case or from a previously fired case? A bit of jacket or is it a lead ring? Proper jacketed bullets being used or were they lead or plated bullets? Any pics of unfired examples of the ammo being used?

Glock has a pretty clear statement against the use of lead and plated bullets.

Seen examples of most types of pistols KBing at one time or another and most revolved around bad ammo or shooters not recognizing a squib and then shooting a following shot with a bore still obstructed from the squib load's projectile.

Google 1911 KB, S&W KB, Ruger KB, AR KB, M1 Garand KB, M1A/M14 KB, or revolver KB. You'll find several of each.
 
Yes case came from the exact pistol fired. I too believe it is ammo related.

I believe the ammo was out of spec and or over pressure and the pistol was able to fire this round with it slightly being out of battery.

The thing about the statement in the manual. I do know of someone who had a catastrophic failure with factory ammunition. The manufacturer of the firearm after reviewing the firearm stated there was nothing wrong with the pistol and the ammunition was at fault. The offered a slight discount on a new pistol but essentially said take it up with ammunition manufacturer.

I am only stating this to say those lifetime warranties do not cover any ammunition problem at all.
 
Glad to see that the user looks ok. My only input is that I have been a police officer for over twenty years. Half of that time was spent with glock 40 cals (Gen 3 Glock and now Gen 4.) I'm an instructor and have been to many many schools and seen thousands of rounds fired from Glocks and the only KB I have personal knowledge about is a G21, using crappy reloads, in a swat class. I have seen KBs in Sigs, 1911s and that one Glock. Not saying it doesn't happen but I believe the KB isn't very common, not as common as some think it is.

I did have an incident with a Glock in 357 Sig but it was a squib.
 
Heard of exactly that happening over on the s and w forum with a 40 shield, smith said it was the ammo, ammo company said it wasn't them....then what do ya do.....lol

I don't know but firing out of battery to me would seem like a pistol issue
 
Notice in the pic of the barrels that the feed ramp itself is bent down and that the metal web leading to the bottom of the chamber is torn away. Glock has changed angles on more recent generation guns slightly. I haven't seen examples of recent guns exhibiting case bulge except in older (early Gen 3, Gen 2, and Gen 1 Glocks.). Doesn't mean it doesn't still happen, but in sweeping and sorting brass at the range, I don't see the bulges I used to from people using .40 cal Glocks like I used to.
 
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