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Augs cracking stocks all over? (Page 8 of 11)
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Originally Posted By ITCHY-FINGER: When I called Steyr USA a few months ago (to ask advice about the port cover issue) I was told that the AUG stocks are made in Austria. iirc the stock, trigger pack, and bolt are made in Austria. The barrel is half and half. Don't remember about the bolt carrier group. I believe the receiver is USA made also. edit: One of my AUG barrels has "5.56X45 Made in the USA" while the other barrel only has the caliber. Yeah, I've heard that as well. I've also heard they are still saying the receivers are forged in US when it is clearly been changed to US cast receiver. It could be just old information kept around the office which gets shared with the public when asked. It is a possibility. As mentioned earlier, it was a "connect the dots (best guess)" from the group I talked to. Seeing the changes of quality and markings on the stock and receiver, and 7x more rifle production in 2 years kind of suggest a change to less imported parts to make more complete guns. |
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Originally Posted By ITCHY-FINGER: I am a new AUG owner and fell in love immediately. Is it possible that the cracks and other issues are the result of a whole new group of users? Folks that are doing a lot more with the guns like shooting 2 or 3 gun matches and various demanding shooting sports? Stressing the guns in ways not seen previously coupled with the many new guns in circulation. I've been into mil. type rifles since the 80's and my first AUG arrived this year so maybe I am not alone. In my 35+ years, I saw my first AUG at the range THIS YEAR and holding it, dry firing it got me to buy mine! Kinda like covid $$$ bringing a new class of travelers onto airplanes and subsequently causing chaos, not knowing how to act, doing stupid shit... Im not trying to be sarcastic and I can accept the likelihood that quality or something else changed with the production formula since covid fucked the world. The loose port cover and stock cracking is definitely a more recent issue. Recent stocks with cracking issues usually happens with under 500rds through the gun. Not the case for earlier guns. Recent port covers coming loose can happen with just a few hundred rounds and you can easily push the cover off with your finger. Not the case for earlier guns. As mentioned in my previous post reply to you, Steyr USA increased their rifle production by 7 fold in 2 years. That is a TON of production capability in a short time. They are also offering a TON of different barrels which we know are US made or at least US finished using Austrian blanks. Whatever the case, I'm guessing there's a change for US side to be less dependent on foreign imported parts from Austria. |
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Originally Posted By kiddsf: Don't worry, I've seen ITCHY's OP... and again, it isn't a design defect when this issue is something that popped up only recently. I know it is frustrating when people experience this issue and want to blame it as an inherent design flaw but it isn't the case. I can say the same for you to not spread misinformation (or possibly disinformation) calling it a design flaw when it is something more like a recent production QC flaw. To me, it isn't a design flaw when it is something that only popped up recently on more recent production A3M1 guns and not A1, A2/USR, A3, and earlier A3M1. My main shooter A1 has 13k rounds and multiple A3 guns with over 6k rounds. My 2 A3M1 were the only guns that I have issue with the ejection port cover coming loose after just a few hundred rounds. I can simply push on it without much force to remove the cover on my A3M1. My A1, A2/USR, A3 covers are not like this. I fixed this myself by bending a little bit on the interior 'hook' parts the metal retainer piece so it can hold on to the plastic cover better. No issue since. I literally linked the evidence. Please cite your evidence/support that indicated it was a new production issue, the thread seemed to indicate it was common with a known tape workaround. It would be interesting to see if any of the posters who had the issue in the other thread can indicate what year their Rifle was. I am glad that you experienced the design defect in 16% of the rifles you shoot and conducted a user modification of the dust cover itself rather than the stock. If anything that points to a dust cover problem, are you aware of a port cover redesign in the last 40 years? FYI, as we discussed earlier in this thread changing the material of the stock is a design issue not a QC issue. Same goes for if they redesigned the port cover. QC issue would be we saw issues with it over the last 40 years infrequently, but see surges of them every now and again. |
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My theory on the port covers, and I've mentioned this before, is that they can take a small bend if people pry the edge up too far when removing them. Then, if they put forward pressure from the rear while shooting, that can make the cover slide forward and allow the inner piece to drop down and to make contact with the bolt. If you look at enough pictures of AUGs online you can clearly see come covers with that slight curve. They absolutely do not come like that from the factory. The design of the inner/outer port covers does not allow them to detach from each other any other way. If it were the inner piece being to low while still attached to the outer one, it would be mangled from getting slammed into by the bolt carrier |
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Originally Posted By FrozenIceman: I literally linked the evidence. Please cite your evidence/support that indicated it was a new production issue, the thread seemed to indicate it was common with a known tape workaround. It would be interesting to see if any of the posters who had the issue in the other thread can indicate what year their Rifle was. I am glad that you experienced the design defect in 16% of the rifles you shoot and conducted a user modification of the dust cover itself rather than the stock. If anything that points to a dust cover problem, are you aware of a port cover redesign in the last 40 years? FYI, as we discussed earlier in this thread changing the material of the stock is a design issue not a QC issue. Same goes for if they redesigned the port cover. QC issue would be we saw issues with it over the last 40 years infrequently, but see surges of them every now and again. I already mentioned my sample size and other members with older production guns not having cracking stock and/or port cover issue. We can't agree on this at all so I'll just say we can agree that we disagree on this. |
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Originally Posted By mcantu: My theory on the port covers, and I've mentioned this before, is that they can take a small bend if people pry the edge up too far when removing them. Then, if they put forward pressure from the rear while shooting, that can make the cover slide forward and allow the inner piece to drop down and to make contact with the bolt. If you look at enough pictures of AUGs online you can clearly see come covers with that slight curve. They absolutely do not come like that from the factory. The design of the inner/outer port covers does not allow them to detach from each other any other way. If it were the inner piece being to low while still attached to the outer one, it would be mangled from getting slammed into by the bolt carrier Yeah, I've seen a few guns with a slightly bent cover. Old and new guns. The user not knowing how to properly take off the cover is the problem. There is no need to bend the cover that much to remove it. I've seen a few guns with tool marks on the cover as well indicating more than necessary force applied. As mentioned previously to another member, the recent guns do have their ejection port cover much easier to remove than older production guns. With my own 2 A3M1 for reference and many users reporting their issue, I think it is too easy to remove compare to older guns. |
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Originally Posted By kiddsf: I already mentioned my sample size and other members with older production guns not having cracking stock and/or port cover issue. We can't agree on this at all so I'll just say we can agree that we disagree on this. I think you are lumping two problems together. One is the Stock Issue, which the community identified as occurring in the last 4 years on new guns. The other is the port cover issue in which the only report of what generation gun that experienced the issue was yours. Which we now have reports, here, of damaged dust covers in photos of the military issue ones which most certainly isn't a new civilian production issue. Similarly I am pretty sure lazy engineer's Aug is older than 4 years and he is one of the ones that replaced his dust cover at least twice. As you have quite a few generations of Aug, you actually would be in a unique spot to see if there were any design changes to the Port Cover or the opening. Could you mic the chassis Port Cover opening and thickness in all your chassis, as well as take images/measurements of your port covers? If there was a design change that made the new ones more susceptible we should see that in dimensions (perhaps in thickness?) |
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Originally Posted By Former11BRAVO: Why not just get a TAVOR?  I'd love to pay around with a Tavor. For me the AUG is the "only" bullpup but I'm open minded. The Tavor certainly has more combat creds lately from Gaza. One of the shooters at my local 2-gun matches sometimes uses a Tavor and he has trouble past 100 yards. And he is a very good shooter with an AR and I wonder about the Tavor accuracy. |
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Originally Posted By FrozenIceman: As far as your exposure to running into the design defect, you have the citation from here that talks about it. Just because you didn't run one of your 12 Aug's hard enough doesn't mean others that only have 1 non-NATO Aug haven't run into it multiple times over the decades. Once the cover is sucked into the BCG, the cover is done and the port cover can't be repaired. That is the definition of a consumable, it has to be replaced and some posters here have replaced it multiple times. If you don't want to click on the link with actual evidence of the failures that is on you. Don't spread misinformation when people in this community have posted of the failure. As TSH77769 pointed out in the other thread, a shooter modification is the current best solution to ITCHY-FINGER's report As the community pointed out, the current theory is a tight cheek weld pushing on the panel. Which may not be the case for the Military high optic mounted Augs and training. In my case, the port cover caused a bad jam and both parts went into the breach/chamber area but fell out when I was clearing it. But the parts do not appear to be damaged in any way. I examined them close since I assumed they would be crunched or bent but I see nothing. The rounds in the gun must have soaked up the impact instead of the port parts. I am still running the original port parts and have not had any problem since. My theory is still that running with the rifle and snapping it up to my face/shoulder dislodged the port cover. And/or it was installed wrong/backwards at the factory. I have never even touched an older AUG so I cannot compare but the port covers (on my 2 2024 AUGs) are easy to remove once you know the trick. I use my fingernail to lift of a corner of the plastic cover then slide it off the grove of the metal inner peace. Easy peasy. I've thought about using some sticky epoxy to "gum" the two pieces together but haven't tried it since the problem has not appeared again since. I'm also afraid that the glue or epoxy etc. will melt due to heat from firing and ooze out causing more mischief than it solved. The only mechanical solution I can think of is two parts that are screwed together, probably from the inside through the right side port. But screws can come lose too... |
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Originally Posted By texasyid: I have been shooting these things since the 80's never saw a need to remove the port covers. Same here but one of mine fell off as mentioned above. I wasnt sure how many pieces it has so I removed the port cover from my other rifle to compare, make sure I ant missing something. It was basically to learn how they go together |
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Originally Posted By Former11BRAVO: Why not just get a TAVOR?   Attached File |
Eternity is coming for us all. It cannot be denied, debated or avoided.
We would do well to ponder how we're going to spend that eternity, because eternity is a long time to be wrong.
We would do well to ponder how we're going to spend that eternity, because eternity is a long time to be wrong.
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Originally Posted By Tomac: https://www.ar15.com/media/mediaFiles/1593/Final_IDF_PG_HLX_Vertical_Remote_Cantile-3325550.JPG I don't like the height over bore. Just on principle if nothing else. And the huge pile of parts it's made from. |
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Originally Posted By casktcrw: I don't like the height over bore. Just on principle if nothing else. And the huge pile of parts it's made from. That's why it's good to have options so we can choose what best suits our needs and pocketbook.  |
Eternity is coming for us all. It cannot be denied, debated or avoided.
We would do well to ponder how we're going to spend that eternity, because eternity is a long time to be wrong.
We would do well to ponder how we're going to spend that eternity, because eternity is a long time to be wrong.
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This is a topic of interest since I am waiting on a AUG to be delivered. I had a Tavor and really do not miss it and decided to give an AUG an honest try. The tavor is a block like shooting a 2X8 with a recoil pad. Some background I have been in manufacturing for decades and 10 years in precision injection molding. Molding is really a science and using the same mold you can get drastic part changes using the same material. Injection pressure, pack & fill time, temperature along with material condition (age, moisture content) all has an impact. Stock cracks can be cosmetic or mechanical failure and it sounds like the former over the latter. Will be looking my stock over for date code, any cavitv or mold ID, material /recycle code, injection gates, etc. |
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Originally Posted By Finslayer83: If I buy a new one, will it have this issue? This thread offers a potential solution. Use a needle file and round the corners as shown in this pic posted in the thread (not my pic) Page 2 post #10  |
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Originally Posted By pilotshark: This thread offers a potential solution. Use a needle file and round the corners as shown in this pic posted in the thread (not my pic) Page 2 post #10 https://www.ar15.com/media/mediaFiles/60275/Screenshot_20230518_131309_Gallery_jpg-2820701.JPG Originally Posted By pilotshark: Originally Posted By Finslayer83: If I buy a new one, will it have this issue? This thread offers a potential solution. Use a needle file and round the corners as shown in this pic posted in the thread (not my pic) Page 2 post #10 https://www.ar15.com/media/mediaFiles/60275/Screenshot_20230518_131309_Gallery_jpg-2820701.JPG They cracked in several locations, not just a lock. This is just bandaid at best and doesn’t address the problem with the material. |
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Originally Posted By Finslayer83: If I buy a new one, will it have this issue? The simple answer is no. If the gun is old stock and has a 2020 era stock then there is a possibility that the stock could have a problem. However, Steyr has been 1:1 replacing broken and cracked stocks. |
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Originally Posted By 80085: The simple answer is no. If the gun is old stock and has a 2020 era stock then there is a possibility that the stock could have a problem. However, Steyr has been 1:1 replacing broken and cracked stocks. Originally Posted By 80085: Originally Posted By Finslayer83: If I buy a new one, will it have this issue? The simple answer is no. If the gun is old stock and has a 2020 era stock then there is a possibility that the stock could have a problem. However, Steyr has been 1:1 replacing broken and cracked stocks. Ty! So where do I find a deal on an M1, OD, that takes waffle mags? |
Panem et Circenses
I have also learned from experience that the greater part of our happiness or misery depends upon our dispositions, and not upon our circumstances.
I have also learned from experience that the greater part of our happiness or misery depends upon our dispositions, and not upon our circumstances.
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Originally Posted By Finslayer83: Ty! So where do I find a deal on an M1, OD, that takes waffle mags? Check gun.deals.com and search for Steyr aug. Bereli and Atlantic have good prices. Gun prime has an STG77 style green waffle mag gun for 1799 right now that was 1599 last week. Their prices fluctuate. |
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Originally Posted By pilotshark: This thread offers a potential solution. Use a needle file and round the corners as shown in this pic posted in the thread (not my pic) Page 2 post #10 https://www.ar15.com/media/mediaFiles/60275/Screenshot_20230518_131309_Gallery_jpg-2820701.JPG I think the best thing to do is shoot/use our AUG's and if they break, get it replaced by Steyr rather than trying to keep a defective stock going as long as possible. Regardless of any possible benefits, I do not think AUG stocks are cracking due to un-radiused corners. Sure it may help delay a crack but personally, I want to know if my shit is defective ASAP and get it swapped out. I'm tempted to throw my stock down the driveway a few times because the suspense is killing me...  My 2 2024 AUG's have been going strong with about 1K rounds each. I've also bought some replacement stocks in different colors and NATO versions in the arfcom tradition. |
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Originally Posted By ITCHY-FINGER: I think the best thing to do is shoot/use our AUG's and if they break, get it replaced by Steyr rather than trying to keep a defective stock going as long as possible. Regardless of any possible benefits, I do not think AUG stocks are cracking due to un-radiused corners. Sure it may help delay a crack but personally, I want to know if my shit is defective ASAP and get it swapped out. I'm tempted to throw my stock down the driveway a few times because the suspense is killing me... My 2 2024 AUG's have been going strong with about 1K rounds each. I've also bought some replacement stocks in different colors and NATO versions in the arfcom tradition. No- they are cracking because of a bad batch of polymer, and having a sharp corner, which is just a bad original design move. But radiusing the corner absolutely can help prevent it from actually breaking. Steyr didn’t break out their dremel tool and start radiusing corners just for the hell of it, someone told them to take a look at how stress concentrations are avoided and repaired in various materials- something they should have known in the 1970’s but missed. So yeah if you want to just go break it- don’t radius the corner. Smack it against something. Send it back if it breaks…. Personally I just took 5 minutes to file out the corners just like Steyr did. Hell what they should be doing is radiusing the corners even with the correct polymer. They would be tougher than the originals… |
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Originally Posted By tac556: Personally I just took 5 minutes to file out the corners just like Steyr did.  I can’t fathom why would anyone would want to keep a stock made from the defective polymer. I’d leave it and hope it breaks sooner rather than later. I’m glad you’re happy, you do you, but it doesn’t sound like good advice to me.
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The port cover is kind of cheesy , on my AUG the cover is definitely not tight and easy to remove , maybe too easy. Will shoot it and see if it plays nice. The metal retainer is robust but the interface with the actual plastic cover is weak. Maybe I can bend the retaining tabs in a bit. |
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Originally Posted By JKH62: The port cover is kind of cheesy , on my AUG the cover is definitely not tight and easy to remove , maybe too easy. Will shoot it and see if it plays nice. The metal retainer is robust but the interface with the actual plastic cover is weak. Maybe I can bend the retaining tabs in a bit. We make the AUG Enhanced Port Cover for this very issue, locks down tight and all metal. (It seems loose OEM port covers are a more common experience recently) Sven Manticore Arms |
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Originally Posted By Manticore_Arms: We make the AUG Enhanced Port Cover for this very issue, locks down tight and all metal. (It seems loose OEM port covers are a more common experience recently) Sven Manticore Arms I wonder...as with the cracking stocks...it some new plastic at fault or just the huge increase in the AUG's that Steyr USA is pumping out makes it appear to be a bigger problem than it really is? Or with all the new AUG's out in the wild, many more are being used in rough "action" type sports like 2-gun, causing more people to have problems? Possibly all-of-the-above. Plus, in today's internet age, it's possible to hear about problems that you would never hear about before, even if you hung out at the range or gun store 24/7. Or I may just check out that enhanced port cover... |
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Originally Posted By ITCHY-FINGER: I wonder...as with the cracking stocks...it some new plastic at fault or just the huge increase in the AUG's that Steyr USA is pumping out makes it appear to be a bigger problem than it really is? Or with all the new AUG's out in the wild, many more are being used in rough "action" type sports like 2-gun, causing more people to have problems? Possibly all-of-the-above. Plus, in today's internet age, it's possible to hear about problems that you would never hear about before, even if you hung out at the range or gun store 24/7. Or I may just check out that enhanced port cover... Originally Posted By ITCHY-FINGER: Originally Posted By Manticore_Arms: We make the AUG Enhanced Port Cover for this very issue, locks down tight and all metal. (It seems loose OEM port covers are a more common experience recently) Sven Manticore Arms I wonder...as with the cracking stocks...it some new plastic at fault or just the huge increase in the AUG's that Steyr USA is pumping out makes it appear to be a bigger problem than it really is? Or with all the new AUG's out in the wild, many more are being used in rough "action" type sports like 2-gun, causing more people to have problems? Possibly all-of-the-above. Plus, in today's internet age, it's possible to hear about problems that you would never hear about before, even if you hung out at the range or gun store 24/7. Or I may just check out that enhanced port cover... |
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Originally Posted By FullAssault: I run AUGs in 2/3 gun, tac & many classes. Never had a stock crack. Killed an extractor , bolt sleeve , port covers, piston and a few bbls. Never had any issues with the stock . Originally Posted By FullAssault: Originally Posted By ITCHY-FINGER: Originally Posted By Manticore_Arms: We make the AUG Enhanced Port Cover for this very issue, locks down tight and all metal. (It seems loose OEM port covers are a more common experience recently) Sven Manticore Arms I wonder...as with the cracking stocks...it some new plastic at fault or just the huge increase in the AUG's that Steyr USA is pumping out makes it appear to be a bigger problem than it really is? Or with all the new AUG's out in the wild, many more are being used in rough "action" type sports like 2-gun, causing more people to have problems? Possibly all-of-the-above. Plus, in today's internet age, it's possible to hear about problems that you would never hear about before, even if you hung out at the range or gun store 24/7. Or I may just check out that enhanced port cover... Older AUGs don't have the problem. It's newer production stock AUGs. Mines is a 1997 and 2009 and both have no issues. |
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These two I must have.
For my love, I’ll sacrifice
My life.
For liberty, I’ll sacrifice
My love.”
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Originally Posted By ITCHY-FINGER: I wonder...as with the cracking stocks...it some new plastic at fault or just the huge increase in the AUG's that Steyr USA is pumping out makes it appear to be a bigger problem than it really is? . Even using the same mold/s and material molded parts can vary a LOT depending on the setup. I worked in precision injection molding for over a decade. We had a full materials lab and analyzed material incoming for every batch before it was OK to use in production. 1st shots (set up parts) were also sent to the material lab for weight ( pack and fill part density ) along with destructive and tensile testing. We had a multi cavity mold and one of the cavities was failing material testing. Turned out a mold heater was dead and mold was cooler in that cavity. Shot it with our thermal camera and it was clear but same mold & material but 1:4 parts was bad or 25% scrap each shot. I would love to know more about the AUG molding process , how many cavities , machines , etc. but I doubt it will ever come from the factory. If my new AUG stock cracks I will have it swapped , no biggie. The AUG is likely the easiest gun to strip and put back together. I do feel Steyer , since they know there is some issue, should cross ship a replacement stock to those affected with a return shipping label. If you registered your AUG with them and have a cracked stock issue, provide pics or proof of ownership they should take a little extra effort and get one in the mail to the impacted owner. |
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Originally Posted By ITCHY-FINGER: I wonder...as with the cracking stocks...it some new plastic at fault or just the huge increase in the AUG's that Steyr USA is pumping out makes it appear to be a bigger problem than it really is? Or with all the new AUG's out in the wild, many more are being used in rough "action" type sports like 2-gun, causing more people to have problems? Possibly all-of-the-above. Plus, in today's internet age, it's possible to hear about problems that you would never hear about before, even if you hung out at the range or gun store 24/7. Or I may just check out that enhanced port cover... Reddit aug Just spit balling but the stocks having the error alongside the popularity of suppressors and the at the time limited availability of the Aug suppressor gas plug resulting in many people shooting their Aug with higher bolt velocity and it was the perfect storm to cause the affected stocks to fail in a dramatic fashion. Remember some of these guns literally broke in half. I noticed the worst ones looked to be suppressed. |
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Originally Posted By Jozsi: Older AUGs don't have the problem. It's newer production stock AUGs. Mines is a 1997 and 2009 and both have no issues. Originally Posted By Jozsi: Originally Posted By FullAssault: Originally Posted By ITCHY-FINGER: Originally Posted By Manticore_Arms: We make the AUG Enhanced Port Cover for this very issue, locks down tight and all metal. (It seems loose OEM port covers are a more common experience recently) Sven Manticore Arms I wonder...as with the cracking stocks...it some new plastic at fault or just the huge increase in the AUG's that Steyr USA is pumping out makes it appear to be a bigger problem than it really is? Or with all the new AUG's out in the wild, many more are being used in rough "action" type sports like 2-gun, causing more people to have problems? Possibly all-of-the-above. Plus, in today's internet age, it's possible to hear about problems that you would never hear about before, even if you hung out at the range or gun store 24/7. Or I may just check out that enhanced port cover... Older AUGs don't have the problem. It's newer production stock AUGs. Mines is a 1997 and 2009 and both have no issues. |
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Originally Posted By JohhnyCobra: Shit, I’d love for someone to confirm that black stocks have this issue. I asked before in this thread and unless I’m mistaken, someone said maybe they saw a broken black one. Am I wrong that this is 97% a colored stock issue and MAYBE someone saw one or two black ones break? Or have we even seen a single confirmed black stock broken? Bump to repeat this question. Other manufacturers have had trouble with other than black polymer. Green seems to be fine, at least the old stuff. Was a little bummed at having to Duracoat my black stock but now I’m so grateful. Also has the FN chrome bbl.  Kentucky Ballistics: Can You Suppress 10mm??? #fail |
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Originally Posted By Manticore_Arms: We make the AUG Enhanced Port Cover for this very issue, locks down tight and all metal. (It seems loose OEM port covers are a more common experience recently) Sven Manticore Arms You make a quality part and a nice option. My suppressor gas plug arrived and pulled my port cover off. The metal piece is the culprit of the lose fit. Used needle nose pliers and bent the metal tabs down slightly and re-installed and WAY better fit. I am sure its not as secure as your cover but if mine does not stay put it will be replaced. |
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Originally Posted By JKH62: You make a quality part and a nice option. My suppressor gas plug arrived and pulled my port cover off. The metal piece is the culprit of the lose fit. Used needle nose pliers and bent the metal tabs down slightly and re-installed and WAY better fit. I am sure no where are positive as your cover but if mine does not stay put it will be replaced. Originally Posted By JKH62: Originally Posted By Manticore_Arms: We make the AUG Enhanced Port Cover for this very issue, locks down tight and all metal. (It seems loose OEM port covers are a more common experience recently) Sven Manticore Arms You make a quality part and a nice option. My suppressor gas plug arrived and pulled my port cover off. The metal piece is the culprit of the lose fit. Used needle nose pliers and bent the metal tabs down slightly and re-installed and WAY better fit. I am sure no where are positive as your cover but if mine does not stay put it will be replaced. Good to hear it was an easy fix! Sven Manticore Arms |
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Originally Posted By FullAssault: I run AUGs in 2/3 gun, tac & many classes. Never had a stock crack. Killed an extractor , bolt sleeve , port covers, piston and a few bbls. Never had any issues with the stock . Good to know. I'm sure folks have been shooting AUG's since the 80's but not in the numbers we are seeing today. What kind of round counts are you getting? especially from your barrels? If 0.001% fail out of 5000 guns, we will never hear about it. But out of 80,000 guns in the age of the internet, that 0.001% will seem like an epidemic. |
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Originally Posted By JKH62: Even using the same mold/s and material molded parts can vary a LOT depending on the setup. I worked in precision injection molding for over a decade. We had a full materials lab and analyzed material incoming for every batch before it was OK to use in production. 1st shots (set up parts) were also sent to the material lab for weight ( pack and fill part density ) along with destructive and tensile testing. We had a multi cavity mold and one of the cavities was failing material testing. Turned out a mold heater was dead and mold was cooler in that cavity. Shot it with our thermal camera and it was clear but same mold & material but 1:4 parts was bad or 25% scrap each shot. I would love to know more about the AUG molding process , how many cavities , machines , etc. but I doubt it will ever come from the factory. If my new AUG stock cracks I will have it swapped , no biggie. The AUG is likely the easiest gun to strip and put back together. I do feel Steyer , since they know there is some issue, should cross ship a replacement stock to those affected with a return shipping label. If you registered your AUG with them and have a cracked stock issue, provide pics or proof of ownership they should take a little extra effort and get one in the mail to the impacted owner. It does seem that plastic injection and molding process is an art and a science. If something like you described happened with a run a stocks and Steyr sent them out before realizing (or just decided to let CS handle the issue) then I can see an "epidemic" of cracking stocks. It could be a combination of changing materials or ingredients or some simple yet crucial part of the process like proper mold temp. was botched I can see it turning into what we have now. By now, Steyr knows exactly what happened since they have enough of the broken stocks to pinpoint the time/place of manufacture. |
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Originally Posted By Karankawa: Bump to repeat this question. Other manufacturers have had trouble with other than black polymer. Green seems to be fine, at least the old stuff. Was a little bummed at having to Duracoat my black stock but now I’m so grateful. Also has the FN chrome bbl.  https://www.youtube.com/watch?v=nPYqBT5J2BIYes we discussed this a while back. Some people feel the culprit may be the mud colored stocks since we seem to be seeing them crack more. Or maybe they are just more popular? I realize that I caused a stir last year when I thought my black stock had a crack. But it turned out it was a scratch caused by some careless person rounding the corners of the takedown bolt hole. The scratch it still there and has not grown in the past year and 1000+ rounds. I have not seen pictures of broken black stocks but I'm sure there must be some, even if run over by a truck. It would be VERY interesting to get a full list of Stery CS replacements over the past few years. |
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Originally Posted By ITCHY-FINGER: It does seem that plastic injection and molding process is an art and a science. If something like you described happened with a run a stocks and Steyr sent them out before realizing (or just decided to let CS handle the issue) then I can see an "epidemic" of cracking stocks. It could be a combination of changing materials or ingredients or some simple yet crucial part of the process like proper mold temp. was botched I can see it turning into what we have now. By now, Steyr knows exactly what happened since they have enough of the broken stocks to pinpoint the time/place of manufacture. LOTS of variables in molding using the same molds and material. When there is a material change typically the parts go thru the same initial approval and testing process. They should know exactly if it was from a material revision (change date and 1st shots) since parts / molds are date coded and likely multiple molds / cavities so they know the numbers manufactured, date, color, etc . As frustrating as Google an issue with a car and you get a lot of similar complaints or issues but you call a service center and "they never heard of it". It's like they are Amish and don't use the net. |
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Well looks like I have to call Steyr …. Attached File Attached File |
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Originally Posted By bullet-cooker: Well looks like I have to call Steyr . https://www.ar15.com/media/mediaFiles/55318/IMG_3224_jpeg-3510210.JPGhttps://www.ar15.com/media/mediaFiles/55318/IMG_3223_jpeg-3510211.JPG |
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Originally Posted By bullet-cooker: Well looks like I have to call Steyr …. https://www.ar15.com/media/mediaFiles/55318/IMG_3224_jpeg-3510210.JPGhttps://www.ar15.com/media/mediaFiles/55318/IMG_3223_jpeg-3510211.JPG Green stock? What is the vintage? That chamfering or whatever around the takedown bolt looks rougher than most I have seen. |
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Originally Posted By bullet-cooker: Well looks like I have to call Steyr …. https://www.ar15.com/media/mediaFiles/55318/IMG_3224_jpeg-3510210.JPGhttps://www.ar15.com/media/mediaFiles/55318/IMG_3223_jpeg-3510211.JPG Bummer. I would have radiused the corners to help prevent it, but at least you get a current stock from Steyr hopefully in the end… |
a loaded gun won’t set you free, so you say…
Augs cracking stocks all over? (Page 8 of 11)
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