My AK Blew Up! Zastava Zpap M92 

Zastava CS in Serbia is not the same as CS in the US 🙂. But i'll give it a shot

I don't think Zastava has that good cusomer support,but would be great!

@@mrsinflames we'll find out 🙂

This isn't zastava this isn't a zpap he's got to contact century arms this is definitely not a zpap u can tell by the non bulged trunnion

@timothycain4512 never heard of a bulged trunion. This is a genuine Zastava arms M92. Not a US import. We are discussing metalurgy here not nomenclatue. But since.. Zpap stands for Zastava pol automatska puska. The opap and npap are just import nomenclatures designating import batches. You're welcome

Thanks. I appreciate the thought

Yea the way it destroyed the back of the trunnion doesn't look like it was in battery

ZSR has done this to 7 AK and they have rebranded their ammo. He got lucky it didn't shrapnel and it was lugs that shat.

Great observation. My first impression was an over loaded round. There have been examples of ammo from Turkey - NOT 7.62X39 but as I recall 30-06 or similar in a batch that was excessively loaded with propellant, leading to some problems with as I recall bolt guns. That is from my recollection and I have not googled the articles etc., but that was within the past three years, here in the US. Your observations on the Bolt wear were spot on also. Might it possibly be a combination of over loaded ammo AND excessive head space at that critical split second in time?

I would gamble it has a KNS and set very low causing light battery and wear. I have seen this before with Izzy and Arsenal when the gassing is super low and the bolt has really hot loadings.

Damn, you're explaining my mac 90 that I haven't shot due to the go no go being just so close to being out of spec. What would you do in that instance on a never fired outside of the factory gun? Re drill it?

It will make for some impressive wall art yea 🙂

Yea, bolt wear is something else. It kinda gets 'run in' but the weak faulty metalurgy is troublesome indeed. Trunion cracked and coused excessive wear on the lug in just 20 rounds.

Double feed or poor headspeacing broooo

@@smooth247fyi brooooo. No. Bad or excesive heat treatmen. Lol.. ppl thinking headspace gets bad over night. Strong thoughts..

@@knedlops. same difference

@@knedlops. I totally agree with it being improper heat treatment on the trunnion. Sorry about your rifle..glad you didn't get hurt. You can see it was getting beat up from those last rounds that's strange to me, I hope you can get the company to replace it, let us know what happens.

Thank you!

Thx , appreciated👍

Yup. She's done for

Yea, that it did. I love the design and feel of the rifles.

Yugo/Zastava have always been JUNK! Worst AK variant!! They've ALWAYS been unreliable because they aren't properly copied AKs and have all their horrible gas BS issues.. They're a disaster!! Lol

@smooth247fyi i love your overconfident tone. We have very different opinions tho..

@@smooth247fyi Wired, My M70 has run great for a solid 6 years and by my guess 10k or 12k rounds? By all means lemons happen in every production line, and its possible some MFGs have more QC issues than others, but for the vast majority of people who buy an off the rack M70 or M92 it will work perfectly and for a very long time

@therideneverends1697 That's simply not true though... Their QC sucks. They have runs and runs of poorly manufactured aks. They aren't modular, and some are almost so off pattern they almost aren't even aks (probably why they're junk)... Every single gas modifier is super prone to fail, causing tons of malfunctions. This is on a large scale. No doubt, worst ak variant.

No problem, happy to share experiences with the community. No squib ,no bulging, barrel is fine. The rifle actually chambered the next round but didn't go into battery. I will make a follow up video for sure!

@@knedlops.Are you in the US, as some people are curious if this was imported though Century Arms or Zastava USA? Also does the ammo you used come sealed in the metal surplus cans or how is it packaged ? PS, been watching some of your other uploads; you are without doubt a skilled shooter.

@Wolf_Avery Thanks! I am from Slovenia, live here to. The rifle was not a us import. Was bought here. Usually, came in batches that were demiled for the civ market straight from the Zastava factory. Ammo is presumably chineese or Eastern EU copper coated surplus Comes in cardboard boxes.

Not a PSA.. this wasn't an import to the US. This happened in Slovenia. A place you've probably never heard of.

🙂 thank you!

Seems to be the metalurgy. I've been sent numerous pictures of exact failures.

​@@knedlops.You're getting pictures sent to you of broken zastavas?

@jamesjams5085 yes, all of them with the same exact failures

@knedlops. A friend who lives in Bled told me that arr quality Hungarian made AKs that were ex Slovenian army being converted for sale to civilians. Find one of those. Good luck.

Thanks! But, yeah.. either that or just over treated trunion. No point sending this to zastava. They wont touch it if modified.

By the serial number it is 2012. These are de-milled for sale to the civilian market.

Interesting. Production year on the rifle is 2012. Looks kike a metalurgical faulure. So ething went wrong at the trunion tempering stage.. Neki lik u fabrici je žešće zajebao 🤣

​@knedlops. Yup. That's the same era we (US) recieved 💩 Zastavas

@@Vyacheslavvvv If I recall correcttly, that's the year Zastava increased production which meant hiring more people, so very likely someone didn't check what the quality of the new guy's work.

Thanks. Not in the US. This happened in Slovenia. The rifles come from Serbia and are then converted to semi auto for sale to the civilian market. Totaly different than Zastava Usa. I am not interested in rebuilding it. Keep it as ut is because it has sentimental family value. I did run it with a traditional suppressor with tuned gas... add an over heat treated truinion ,shoot a lot and you get it to blow.

Almost funny 😁

They're great rifles. I believe this was a batch of rifles used with excessive heat treatment. Making the trunion brittle . Enjoy your gun👍

Under gassing can cause this malfunction. I started to have bolt hang up issues on my 92 and was worried the KNS was going to cause an out of battery detonation, so I added more gas and it doesn't hang up anymore.

@@dantimmerman6693 valid point my man. I had the same worries, but the bolt never got close to being able to detonate on a hang up. It was just full mag hold ups. I ran it with enough gas to run properly but not eat it self.. ironically 😄

Keep an eye on the fron trunion.

🙂

Thanks. Bolt was out of battery but not on the last shot. Last shot was fine. I remember seeing the shot on the tatget and getting a triggerslap ,proceeded to the next target and was out of battery but still chambered a round.

I'm from the US, what are gun laws like there? If Vepr , Saiga, Norinco are available I'd go with one of those.... No longer imported to the US... We were getting parts kits from Slovenia ( new Manufacture) heard they were good?

Think the parts kits were from Kohl Arms?

Bulged receiver on a m92 has only been made for the us import. Bulged receiver does not make a better or stronger trunion. It is there to prevent bending of the receiver due to the high recoil of using blanks to fire a rifle grenade.

Thank you

Nope, bad metalurgy, excessive heat treatment .. was not ammo related. Gun had a kns system set to a functioning setting.

Keep an eye on the ware of the locking lugs, inspect friction points.

@knedlops. I only shot 1200 rounds through it so far. Most of the catastrophic failures I read online are around 5k for the zpaps. Hopefully, mine can last at least that long.

Zastava voids it's waranty if you look at it sideways.. anyway im not stateside. Zastava in Serbia would just laugh if I send them the rifle.

@@knedlops. Sorry for you brother. That's a major letdown. People in my circles love Zastava products; sorry that their Customer Service can't or won't help. If a gunsmith isn't really an option & you're decent with machine/tool work, you might be able to repair/replace the receiver damage yourself. Removing the rivets and getting a better look at the damage would be a decent exercise in any case.

Yes. All true

It was in battery as far as we can see on the video. No puff ,i only remember getting a trigger slap..

Yup, no point in rebuilding it. Especially not here in europe. I had the KNS on set to a functioning but not overgassed setting. There are numerous cases of a trunion fail, just like mine.

Zastava Kraguljevac made it.

They're junk aks

Correct. The later models are great actually

It's A TDI underfolder to pic adapter.

THANK U @@knedlops.

Interesting. Case seemed fine..

What year was your WASR manufactured, roughly? You're probably aware of their pitiful QC until 2011 or so

@@Vyacheslavvvv I’m not sure. I sold that gun to a friend for strictly a display or prop gun for videos. I’m not even sure that all the numbers matched from bolt to receiver.

@RangeToyz glad you're ok after the catastrophic failure. At this point, I'd rely on just about any Romanian or Polish built AK than [Serbian] Zastavas. Their QC has gone downhill substantially in the past 2 years but more appalling is their dismal metallurgy techniques. Just saw a thread where someone could physically bend Zastava's truntion with pliers whereas he couldn't with Bulgarian, Romanian, Russian, or Polish. To add, a gunsmith noted his yugo reciever refused to (weld) flow well with filler & welding without porosity was impossible Fourthly, when Zastava trunions break, they tend to crack & explode along the entire reciever. Unheard in the other aforementioned producer's firearms

@@Vyacheslavvvv that’s crazy. Here in the USA, demand is way up on guns and ammo due to political propaganda and the gun industry and rifle ammo prices are double to triple of what they were from four years ago. I’m getting back into 22LR guns now because that ammo has basically stayed the same.

Not ammo related at all. Bad material, microfractures. Looks like a cast trunion fail, but Zastava makes forged trunions. No casting marks.

I’ve never seen that happen before. I was thinking Mabe the headspace might have gone out of wack? I’m definitely interested to see what the cause was

@@forthehellofit5544 nope.. the gun was fine.

It looks more and more like it got over tempered, making it brittle. I checked empty casings on a regular basis to check for abnormality, dinted casings and such, but since the kns i haven't been seeying anything. I have cca 1k of brass s&b casings looking perfect. Thx for your opinion.

@knedlops. One symptom to note that isn't always immediately obvious is stretch rings. In some brass, they can be hard to see, and other brass very obvious. If you were checking case OAL with a mic, you would've seen that dimension elongate slightly, but most of any change would occur in the last few rounds before failure. They can occur anywhere forward of the case head, usually forwards of the thicker portion of the case wall, and aft of the bottle neck, but can also form on the bottle neck (shoulder) itself. You may also try to mic the base of the cases, just forward of the head, and see if you can detect any bulging that is beyond normal. Due to the cases taper, this can be a good early warning sign, and I see it a lot in 30-30 marlin 95 pattern guns that go out of headspace, usually coupled with backed out primers. The latter won't be present if the primer pockets are staked and the rounds use hard military style primers, but may have a slightly shallower pin dent with a slight lip around it that will sang your finger nail. If you reload with a manual press, these will feel just a bit harder to resize. If one doesn't have a micrometer, you can check this with a steel straight edge ruler held lengthwise on one side of the case. I will note that I had heard of QC issues with Zastava's receivers in the last couple of years, but nothing about trunnion failures. I think this is a testament to the ak. Even in the event of a catastrophic breech failure, you were still protected.

I don't have a go/no go gauge, but I am quite sure if it had a headspace issue, it would be visible in some earlier bolt and lug ware..

Oh this wouldn't be a problem to rebuild in the US. In Slovenia.. a different problem. The Zastava factory however.. is not that far way

Can't argue with logic. Good man.

Yeah sure, just change some vital components of a gun with aftermarket ones and use ammo, suppressors and other stuff not recommended by manufacturer. And than when stuff like thas happens, wonder why it happened.

Hah. Who knows 🙂. It is an older model. No boulged receiver. Note that a boulged recever is not there to save bad metalurgy..

No, it was bad metalurgy. The front trunion started cracking around the locking lugs. Excessive heat treatment most probably.

@@knedlops. Thank you. That does make sense. I am subscribed. This looks like an interesting channel. Be well.

@@FrankieJizking-js3yv thx. There will be a follow up video.

Thank you!

No, no one. It's kept in a safe.

A TDI underfolder stock adapter and a sig folding mech. Good stuff.

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-YgHEtLL10ZE.htmlfeature=shared

No. It's just the letter that pre fix the pap describing the Gen. Zpap is the latest Gen...Opap, Npap and Zpap 🤙🏼

@@ComblocEliOk cool, thank you for the insight.

@ComblockEli No. It is an importer nomenclature. Official Zastava nomecl. is prefixed with a letter M and then the year it started production followe by PAP. Pol avtomatska puska .

@@knedlops. So each generation 😂

Yes, the gasses on ak's when suppressed exit through the port and down the magazine and the trigger . Little to no gas in your face.

@@knedlops. Thanks for the info.

This is 2012 production year. Zastava didnt import their guns in to the US as they do know. This was made for the mil market and then converted to be sold to the civ market.. But yea.. as you said. It has to be the material.

Paul Popov has pushed this narrative for years and never once followed up on requests to send the actual data to the group. If you request the data, he will ban you. The AK Facebook groups are not a reliable source of information.

Soft would be better in this cas. This was excessive heat treatment, making it brittle.

Thanks. Just the one.

Nah.. watch the video 🙂👍

Nothing serious? The whole receiver is fucked.

Just at 7k rounds

Good maintenance, competition gun, regularly cleaned and inspected.

Thanks, appreciated. The receiver took the most of the explosion and held together like a champ.

This is the first I've heard of any systemic problems from Zastava

@@jamesjams5085 feels like I opened a can of worms..

Yes, my hinge cover was very tight..

😀

M92 with a bilged trunion are made only for the us market. Even those blew up sadly..

​@@knedlops.Regarding US M92s exploding, source? I've never seen such instances in all the forums I purvey

Source was Reddit,. Take it for what its worth but there are images of simmilar blow ups not just zastava.

@knedlops. using different keystrokes, I found what you're saying. You're right; Zastava metallurgy is rubbish. I'd wager their 1.5mn (US) trunions are more of a band-aid rather than a justification to "strengthen" their recievers to incorporate stress tolerances when firing grenades, (something Yugos cared about & Russians didn’t). Even Romanian & Polish have better metallurgy techniques than (soft) Serbian Zas. Shame on them

Certain dealers ensure brand new barrels are fitted in their surplus Toks, via Cugir

Yup. It would need a complete rebuild with new trunion, bolt too

😁Ne, Slovenac

No, I would notice a spicy round. All I got was a triggerslap on the last cycled.shot. We also checked the video.