9mm blowout in HiPoint carbine

Joined
May 9, 2007
Messages
289
Likes
24
Feedback: 1 / 0 / 0
First, I have to say I love my Hi Point 9mm carbine, and have fired thousands of rounds of various factory makes without incident. It is accurate, and reliable, and was inexpensive to purchase. That said, I had a concerning incident happen to me today.

On the fourth round of a fresh 10-round mag, the sound of the report was distinctively louder and different. I immediately stopped shooting, and turned the gun to the left so that I could see into the action/chamber. Just as I observed a stove-piped round and a misfed round caught underneath it, a friend standing 12 feet to my right and a couple of steps behind spoke. "Damn, what was that? That stung like a bitch."

I turned and saw blood running across his shin. Something bad had clearly happened. I grabbed the first aid kit I keep in my truck, and we cleaned up the wound. The hole in his calf was tiny actually, but must have caught a vein, because it bled quite a bit at first. For a horrifying second I thought he'd been shot. I was very relieved to see it stop bleeding, and actually require only a regular band-aid to patch up.

Still, he had obviously been hit by something from my gun, with velocity. I then pulled back the bolt and banged out the offending stove-piped round, as well as the one that had been kept from feeding behind it. I was shocked to see what these pictures show. A round had been fired although it had not been fully chambered. After testing, there is indeed a point where the firing pin will release before the bolt has actually closed How much of the cartridge was out of the chamber can easily be seen in these photos. My friend had obviously been hit by a piece of brass that exploded out of the ejection port.

I have heard of this happening to other blow-back action guns, but has anyone else had this happen to their hipoint? Am I right about what happened? Always take the far right lane I guess... Oh, and always wear eye protection too eh?

9mmblowout1.jpg


9mmblowout2.jpg
 
Last edited:
Glad to hear nobody was seriously injured. Would steel cased 9mm have prevented that from occurring?
 
I've seen that on a lot of guns just never a Hi Point. It almost always is with hand loads and improperly seated primers. I had a friend split the barrel on his Thompson when one of the bullets didn't make it out of the barrel. If that's not the case then maybe your bolt needs a good cleaning.
 
Might not be the gun....that case from the pictures looks very weak in the web area of the case?
What ammo was this?
 
It was typical white box winchester, 115 gr FMJ. I do not handload 9mm. I will take it down today and see what I can see, but I cleared it and fired it without incident for 50-60 rounds after the incident.
 
I have only seen similar cases on a Jennings I was messing with (22 cal). This gun had been bubba'ed and the headspace (among other things) was questionable. Scary stuff.
 
I have only seen similar cases on a Jennings I was messing with (22 cal). This gun had been bubba'ed and the headspace (among other things) was questionable. Scary stuff.

I wouldn't be surprised if a jennings was bubbaed from the factory. [laugh]

-Mike
 
I have had this happen with blowback 22 pistols. Just a lot scarier w/ 9mm close to my face. Are open bolt sub guns prone to this? Again, I have fired thousands of trouble-free rounds from this carbine, including 50-60 after this incident. Just make sure noone is to my right I guess.
 
I actually think it might have made things worse. The soft brass expanding in all likelihood absorbed some of the energy/pressure that a steel case would not have. I am guessing of course, but the steel might have caused an even more powerful detonation.
 
I wouldn't be surprised if a jennings was bubbaed from the factory. [laugh]

-Mike

I thought Bubba was Jennings head armorer?

Ive never had an issue like that in my HiPoint. Check if your firing pin is bent, it acts as the ejector so the stovepipe could have messed it up. HiPoint will send you a new one + spring for free.
 
Last edited:
I have actually joined the HiPoint forum, and apparently most blow-back actions have a particular type of trigger disconnect mechanism that, for functioning reliability purposes, allows the trigger to return to "live" a fraction before the bolt is actually closed on the chamber. There is a YouTube video that addresses the very issue on HiPoint carbines at http://youtu.be/SloOt1TMPwk, but it is waaaay longer than it should have been. Cut to the chase... if a bit of debris, like a blown primer for instance, gets caught by the returning bolt, keeping the bolt from completely closing, the trigger may still release the firing pin. I am almost certain this is what happened to me.

Others with experience with older blow-back pistol caliber subs, like the "grease gun" and even MP40s, report that this is not an uncommon event.

I guess that's the deal. Again I have fired more than a 1000 rounds out of this carbine without incident. I fired 50+ rounds after. I have taken the gun down, and I clearly did not suffer the damage that the guy in the video did. I'll just make sure I take the far right lane from now on. If I was a southpaw shooter, I would be a lot more concerned.

JR
 
Last edited:
Back
Top Bottom