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4/8/2025 9:26:43 PM EDT
[#1]
Quote History
Originally Posted By ITCHY-FINGER:

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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Attached File
4/9/2025 5:00:48 PM EDT
[#2]
This is still going on? 🤦🏻‍♂️
4/10/2025 10:24:54 AM EDT
[#3]
Very strange. You’d think they’d have isolated and fixed the problem by now.
4/10/2025 11:08:40 AM EDT
[#4]
Quote History
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Quote History
Originally Posted By bullet-cooker:
Originally Posted By ITCHY-FINGER:

Green stock? What is the vintage?

That chamfering or whatever around the takedown bolt looks rougher than most I have seen.



https://www.ar15.com/media/mediaFiles/55318/IMG_3288_jpeg-3511734.JPG



When did you buy that rifle?
Preferred Pronoun: Space Lord Mutherfucker
4/10/2025 5:40:10 PM EDT
[#5]
This is still going on
View Quote


Of course not but this thread will never die. The haters are going to keep it going.
4/10/2025 6:36:20 PM EDT
[#6]
Quote History
Originally Posted By texasyid:


Of course not but this thread will never die. The haters are going to keep it going.
View Quote


And it shouldn't die for good reason.

1.  Someone posted a picture of a failed stock that just happened.  The failure is still going on and isn't immediately after the first range day.
2.  His manufacturing code shows it was made in 22, it took 3 years to fail
3.  The Manufacturer still hasn't issued an official notice to anyone, a recall on the stocks, or some information as to what the manufacturer did that caused their process to fail for at least 4 years.

It won't die until the Manufacturer does the following.

1.  Says they made a manufacturing error
2.  Provide the start date of affected guns that have a manufacturing problem
3.  Provide the end date of affected guns that have the manufacturing problem
4.  Issue a voluntary recall
4/10/2025 6:49:59 PM EDT
[Last Edit: OTHP][Edited] [#7]
Quote History
Originally Posted By FrozenIceman:


And it shouldn't die for good reason.

1.  Someone posted a picture of a failed stock that just happened.  The failure is still going on and isn't immediately after the first range day.
2.  His manufacturing code shows it was made in 22, it took 3 years to fail
3.  The Manufacturer still hasn't issued an official notice to anyone, a recall on the stocks, or some information as to what the manufacturer did that caused their process to fail for at least 4 years.

It won't die until the Manufacturer does the following.

1.  Says they made a manufacturing error
2.  Provide the start date of affected guns that have a manufacturing problem
3.  Provide the end date of affected guns that have the manufacturing problem
4.  Issue a voluntary recall
View Quote


And I agree.

Been a long time since I read this thread but I seem to remember my mud PSA AUGust sale M3A1 falling in the "questionable" time frame.
I really need to get it out and give it a good hammering since I really haven't put many rounds through it.
And yes I'm a AUG fan boy.
4/10/2025 10:36:52 PM EDT
[#8]
Had an Aug NATO.  Sold it to a friend who wanted to complete his "Die Hard"  Collection.  Reason I sold it was because of the Stock issue. Plus I had an X95, AUG, VHS-2, Desert Tech, head to head battle. the X95 and the VHS-2 won that one.
4/11/2025 3:46:18 PM EDT
[Last Edit: texasyid][Edited] [#9]
Someone posted a picture of a failed stock that just happened.  The failure is still going on and isn't immediately after the first range day.
View Quote



I guess I missed that one I have been hearing from people not to buy an AUG because the stocks crack. That was back in the eighties. I don't know how they have been in business this long.   LOL

They must have to replace all the stocks of the full auto ones they have been selling since 1977.
4/11/2025 5:09:25 PM EDT
[#10]
Quote History
Originally Posted By texasyid:



I guess I missed that one I have been hearing from people not to buy an AUG because the stocks crack. That was back in the eighties. I don't know how they have been in business this long.   LOL

They must have to replace all the stocks of the full auto ones they have been selling since 1977.
View Quote


This is a very real issue, not a myth about how plastic guns suck. It started in 2019 and apparently they have just cleared it up, so there's about a five year run of very questionable stocks.
4/11/2025 7:04:07 PM EDT
[#11]
Quote History
Originally Posted By crazymoose:


This is a very real issue, not a myth about how plastic guns suck. It started in 2019 and apparently they have just cleared it up, so there's about a five year run of very questionable stocks.
View Quote

It was about a 3 year run, not 5. I'm not aware of any 24/25 stocks cracking
4/12/2025 11:17:40 AM EDT
[#12]
Quote History

Thanks.
My 2 examples are both early 2023, so probably the same vintage. Although I guess one day could make a difference depending on what, if anything is defective.

Please let us know what you and Steyr do.
4/12/2025 11:26:17 AM EDT
[#13]
Steyer knows they made some defective stocks , they also know the range & number affected.

When someone makes a claim and provides them a SN the company should cross ship a replacement and a call tag for the return if its in the range.
Making a customer wait with half a gun and added expense for shipping for their mistake is not great CS.

A little swag with the replacement would be a nice touch.
4/12/2025 4:54:26 PM EDT
[#14]
My 2 stocks are 3/21 and 6/21.

I’ve run the gun hard and beat it around the ranch quite a bit with both stocks. It’s been used hard.

No cracks.

I’m not saying Steyr didn’t put out a bad batch of stocks, but I wonder what kind of usage the guns with cracked stocks were seeing.

Are the owners drop testing the rifle?
Running over them with a truck?

I’m being slightly facetious, but some people act like the stocks are fragile as a wine glass, and will crack if you look at them cross-eyed.

Just wondering if there is more to the story.


4/13/2025 6:14:59 PM EDT
[#15]
re the owners drop testing the rifle?
Running over them with a truck?

I’m being slightly facetious, but some people act like the stocks are fragile as a wine glass, and will crack if you look at them cross-eyed.
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Exactly. which ones are being run with a can? Overloaded hand loads?
4/13/2025 7:21:25 PM EDT
[#16]
Quote History
Originally Posted By texasyid:


Exactly. which ones are being run with a can? Overloaded hand loads?
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I shoot mine suppressed frequently, and haven’t had an issue. But it IS harder on the rifle.
4/13/2025 8:24:20 PM EDT
[#17]
Quote History
Originally Posted By jkirkon:


I shoot mine suppressed frequently, and haven’t had an issue. But it IS harder on the rifle.
View Quote


I'm looking at picking up an M2 with 16" 5.56 to supress with the YH. Turbo 2 and the suppressor plug.

Do the guts of this thing get super dirty when running suppresed? Being a SS piston gun i didn't think that would be an issue, but then again I've never shot/owned an AUG.

Stock issue is non-existant with A2 models, correct?
Robert Muldoon Survived.
4/13/2025 8:35:44 PM EDT
[#18]
The BCG doesn’t get too dirty, but the piston and gas plug will.

When I shoot the .300BLK barrel with the can, I have to use a tool to remove the gas plug. It gets pretty dirty. The 5.56 barrel isn’t quite as bad.
Still functions perfectly though.

I toss it, the piston and spring in the ultrasonic cleaner for a few minutes and they are sparkly new.
4/13/2025 8:37:45 PM EDT
[#19]
I bought my Steyr AUG A3 M1 NATO Extended Rail from PSA back in August '23 for a shipped/OTD price of $1600, which I thought was outstanding, in addition to satisfying a long desired Die Hard itch to scratch...

I bought the mud color version because that's what they had, and in the AZ desert it blends in nicely.  The serial number is in the 34USA range serial number so well within the production range where it could be problematic.  No cracking anywhere and looks like round radius/relief cuts on the corners of the takedown widget.

Round count is more than 500, less than 1K on the normal gas setting, none suppressed, using a variety of "duty" ammo MK262, Winnie Ranger 64-grain, some green tip, etc.

This thread caught my attention for obvious reasons and while older AUGs were definitely less, or not at all, problematic, I'm not particularly concerned with the issue up to the point until it directly affects me...!  Everything is "anecdotal" until it happens to you.

I have no doubt that Steyr customer service would rapidly take care of the issue if it were to occur, and if I come to that bridge I'll cross it; I'm a bullpup nerd and that's not changing anytime soon.
4/13/2025 10:22:51 PM EDT
[#20]
Quote History
Originally Posted By HeavyMetal:



When did you buy that rifle?
View Quote


2 years ago
4/13/2025 10:45:33 PM EDT
[#21]
Quote History
Originally Posted By MikeWhiskey:
I bought my Steyr AUG A3 M1 NATO Extended Rail from PSA back in August '23 for a shipped/OTD price of $1600, which I thought was outstanding, in addition to satisfying a long desired Die Hard itch to scratch...

I bought the mud color version because that's what they had, and in the AZ desert it blends in nicely.  The serial number is in the 34USA range serial number so well within the production range where it could be problematic.  No cracking anywhere and looks like round radius/relief cuts on the corners of the takedown widget.

Round count is more than 500, less than 1K on the normal gas setting, none suppressed, using a variety of "duty" ammo MK262, Winnie Ranger 64-grain, some green tip, etc.

This thread caught my attention for obvious reasons and while older AUGs were definitely less, or not at all, problematic, I'm not particularly concerned with the issue up to the point until it directly affects me...!  Everything is "anecdotal" until it happens to you.

I have no doubt that Steyr customer service would rapidly take care of the issue if it were to occur, and if I come to that bridge I'll cross it; I'm a bullpup nerd and that's not changing anytime soon.
View Quote

Same.
My 2 samples have over 1K each (green and black).
No cracks yet. I bought an extra stock after reading this thread, then another NATO stock when it was on sale at Steyr.
Still very happy with my AUGs.
4/15/2025 8:55:26 PM EDT
[#22]
Quote History
Originally Posted By mcantu:

It was about a 3 year run, not 5. I'm not aware of any 24/25 stocks cracking
View Quote


The ones I've seen have been dated from 19-23, but I think old inventory stocks were going on new rifles until recently. I'm not shitting on Steyr here. I have a huge soft spot for the AUG. One of the reasons for that is that, even given its limitations, it's a no shit, military grade rifle, on par with good AR's and AK's. That's why this fuck up pains me so much.
4/20/2025 12:07:17 PM EDT
[Last Edit: casktcrw][Edited] [#23]
Quote History
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.
View Quote


As I mentioned earlier I was told they swapped materials in 2020 due to shortage. Some old Austrian guy that's been with the company a long time. When I said do you plan to change your back he said I hope not. I have no idea how to take that.

I'm working in molding now. The product is not consistent over time despite having all new presses, molds that stay in one press, new molds, new central drying, and one brand & grade material.

There's one part that's problematic it's a bar with slots and you get a short weld line at the ends past the slots.
We gauge the force required to crack it and it falls out of spec if you run the mold without regular cleaning. Hot runner tool too. Dimensions drift even on simple parts like bushings.
4/20/2025 12:08:26 PM EDT
[#24]
Quote History
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.
View Quote


Yes they do know and they told me they changed materials
4/20/2025 12:10:39 PM EDT
[#25]
Quote History
Originally Posted By crazymoose:


This is a very real issue, not a myth about how plastic guns suck. It started in 2019 and apparently they have just cleared it up, so there's about a five year run of very questionable stocks.
View Quote


The same guy that told me they changed materials told me that he thinks they got the problem fixed with a new batch this was last year he never explained what any of it meant or when they were coming and then I couldn't reach him anymore
5/1/2025 4:04:43 PM EDT
[Last Edit: casktcrw][Edited] [#26]
Told by steyr today problem fixed with "he thinks"
-material change
-molding process change (I thought I should clarify that just means a processing change like temperature or pressure or cooling time. It could simply be an adjustment for the new material. Hopefully the new material is the original material).

Buuuuuut

He told me they're not making the M1 anymore so I don't know how I'm going to arrange to buy an M1 with the new stock.
5/3/2025 6:49:20 PM EDT
[Last Edit: ITCHY-FINGER][Edited] [#27]
Quote History
Originally Posted By JKH62:
Steyer knows they made some defective stocks , they also know the range & number affected.

When someone makes a claim and provides them a SN the company should cross ship a replacement and a call tag for the return if its in the range.
Making a customer wait with half a gun and added expense for shipping for their mistake is not great CS.

A little swag with the replacement would be a nice touch.
View Quote

Agree. Not to mention every cracked stock ends up in social media and gets magnified 87X. And now EVERYONE fears their AUG stock cracking, even folks who don't even own one yet.

It seems that on some corporate level it's good business to do this shit but I don't get it.
5/3/2025 6:52:33 PM EDT
[#28]
Quote History
Originally Posted By jkirkon:
My 2 stocks are 3/21 and 6/21.

I’ve run the gun hard and beat it around the ranch quite a bit with both stocks. It’s been used hard.

No cracks.

I’m not saying Steyr didn’t put out a bad batch of stocks, but I wonder what kind of usage the guns with cracked stocks were seeing.

Are the owners drop testing the rifle?
Running over them with a truck?

I’m being slightly facetious, but some people act like the stocks are fragile as a wine glass, and will crack if you look at them cross-eyed.

Just wondering if there is more to the story.


View Quote

I asked the same question many pages ago. The consensus is that "they just suddenly and spontaneously broke" We are getting very little details beyond that.

I'm sure some guns were abused, ran over, dropped out of a tree stand, etc. But I think it's a minority of cases. Who knows.
5/7/2025 11:42:42 AM EDT
[#29]
Quote History
Originally Posted By casktcrw:
Told by steyr today problem fixed with "he thinks"
-material change
-molding process change (I thought I should clarify that just means a processing change like temperature or pressure or cooling time. It could simply be an adjustment for the new material. Hopefully the new material is the original material).

Buuuuuut

He told me they're not making the M1 anymore so I don't know how I'm going to arrange to buy an M1 with the new stock.
View Quote

I wonder how this will affect owners who don't have a problem until years down the road and if the new model stock is backwards compatible with the aforementioned effected models?
Be free or do not be
5/7/2025 9:58:05 PM EDT
[#30]
Quote History
Originally Posted By pilotshark:

I wonder how this will affect owners who don't have a problem until years down the road and if the new model stock is backwards compatible with the aforementioned effected models?
View Quote View All Quotes
View All Quotes
Quote History
Originally Posted By pilotshark:
Originally Posted By casktcrw:
Told by steyr today problem fixed with "he thinks"
-material change
-molding process change (I thought I should clarify that just means a processing change like temperature or pressure or cooling time. It could simply be an adjustment for the new material. Hopefully the new material is the original material).

Buuuuuut

He told me they're not making the M1 anymore so I don't know how I'm going to arrange to buy an M1 with the new stock.

I wonder how this will affect owners who don't have a problem until years down the road and if the new model stock is backwards compatible with the aforementioned effected models?



They never really changed the stock. Maybe you would need a different hammer pack because of a bolt catch difference or something but the receiver and its relationship with the stock are the same. I’m just pissed I gotta get the stupid M1 hump milled off so I can use a decent rail system.
5/8/2025 11:36:46 AM EDT
[#31]
Quote History
Originally Posted By Nate762:



They never really changed the stock. Maybe you would need a different hammer pack because of a bolt catch difference or something but the receiver and its relationship with the stock are the same. I’m just pissed I gotta get the stupid M1 hump milled off so I can use a decent rail system.
View Quote View All Quotes
View All Quotes
Quote History
Originally Posted By Nate762:
Originally Posted By pilotshark:
Originally Posted By casktcrw:
Told by steyr today problem fixed with "he thinks"
-material change
-molding process change (I thought I should clarify that just means a processing change like temperature or pressure or cooling time. It could simply be an adjustment for the new material. Hopefully the new material is the original material).

Buuuuuut

He told me they're not making the M1 anymore so I don't know how I'm going to arrange to buy an M1 with the new stock.

I wonder how this will affect owners who don't have a problem until years down the road and if the new model stock is backwards compatible with the aforementioned effected models?



They never really changed the stock. Maybe you would need a different hammer pack because of a bolt catch difference or something but the receiver and its relationship with the stock are the same. I’m just pissed I gotta get the stupid M1 hump milled off so I can use a decent rail system.

Ok thanks. I wasn't clear on what was different on the newer model. Good to know if the stock ever cracks, even though I took care to radius the corners on the takedown cutouts, I won't be stuck out of luck.
Be free or do not be
5/9/2025 2:53:10 PM EDT
[#32]
Quote History
Originally Posted By Nate762:



They never really changed the stock. Maybe you would need a different hammer pack because of a bolt catch difference or something but the receiver and its relationship with the stock are the same. I’m just pissed I gotta get the stupid M1 hump milled off so I can use a decent rail system.
View Quote View All Quotes
View All Quotes
Quote History
Originally Posted By Nate762:
Originally Posted By pilotshark:
Originally Posted By casktcrw:
Told by steyr today problem fixed with "he thinks"
-material change
-molding process change (I thought I should clarify that just means a processing change like temperature or pressure or cooling time. It could simply be an adjustment for the new material. Hopefully the new material is the original material).

Buuuuuut

He told me they're not making the M1 anymore so I don't know how I'm going to arrange to buy an M1 with the new stock.

I wonder how this will affect owners who don't have a problem until years down the road and if the new model stock is backwards compatible with the aforementioned effected models?



They never really changed the stock. Maybe you would need a different hammer pack because of a bolt catch difference or something but the receiver and its relationship with the stock are the same. I’m just pissed I gotta get the stupid M1 hump milled off so I can use a decent rail system.


A little sandpaper and about 5 minutes....
I can’t stand it to think my life is going so fast and I’m not really living it.
5/9/2025 4:29:09 PM EDT
[#33]
Anyone able to post some pictures showing what changed with the stock on the latest rifles?
5/9/2025 10:02:19 PM EDT
[#34]
Quote History
Originally Posted By Dissident:


A little sandpaper and about 5 minutes....
View Quote View All Quotes
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Quote History
Originally Posted By Dissident:
Originally Posted By Nate762:
Originally Posted By pilotshark:
Originally Posted By casktcrw:
Told by steyr today problem fixed with "he thinks"
-material change
-molding process change (I thought I should clarify that just means a processing change like temperature or pressure or cooling time. It could simply be an adjustment for the new material. Hopefully the new material is the original material).

Buuuuuut

He told me they're not making the M1 anymore so I don't know how I'm going to arrange to buy an M1 with the new stock.

I wonder how this will affect owners who don't have a problem until years down the road and if the new model stock is backwards compatible with the aforementioned effected models?



They never really changed the stock. Maybe you would need a different hammer pack because of a bolt catch difference or something but the receiver and its relationship with the stock are the same. I’m just pissed I gotta get the stupid M1 hump milled off so I can use a decent rail system.


A little sandpaper and about 5 minutes....


No it’s a little more involved because I’m talking about the QD socket hump on the receiver. Gotta send it off to a machine shop for that. They also need to drill a new hole so you can use the A3 style rails that Steyr is reverting to using.
5/10/2025 7:46:27 AM EDT
[#35]
Quote History
Originally Posted By Nate762: No it’s a little more involved because I’m talking about the QD socket hump on the receiver. Gotta send it off to a machine shop for that. They also need to drill a new hole so you can use the A3 style rails that Steyr is reverting to using.
View Quote
I think one would be better in every way, probably including financial, by selling the M1 and buying the M2. Or buying the M2, keeping the receiver and parting the rest, and vice versa for the M1.
5/12/2025 10:33:00 AM EDT
[Last Edit: Dissident][Edited] [#36]
Quote History
Originally Posted By Nate762:


No it’s a little more involved because I’m talking about the QD socket hump on the receiver. Gotta send it off to a machine shop for that. They also need to drill a new hole so you can use the A3 style rails that Steyr is reverting to using.
View Quote View All Quotes
View All Quotes
Quote History
Originally Posted By Nate762:
Originally Posted By Dissident:
Originally Posted By Nate762:
Originally Posted By pilotshark:
Originally Posted By casktcrw:
Told by steyr today problem fixed with "he thinks"
-material change
-molding process change (I thought I should clarify that just means a processing change like temperature or pressure or cooling time. It could simply be an adjustment for the new material. Hopefully the new material is the original material).

Buuuuuut

He told me they're not making the M1 anymore so I don't know how I'm going to arrange to buy an M1 with the new stock.

I wonder how this will affect owners who don't have a problem until years down the road and if the new model stock is backwards compatible with the aforementioned effected models?



They never really changed the stock. Maybe you would need a different hammer pack because of a bolt catch difference or something but the receiver and its relationship with the stock are the same. I’m just pissed I gotta get the stupid M1 hump milled off so I can use a decent rail system.


A little sandpaper and about 5 minutes....


No it’s a little more involved because I’m talking about the QD socket hump on the receiver. Gotta send it off to a machine shop for that. They also need to drill a new hole so you can use the A3 style rails that Steyr is reverting to using.


My bad.  I was thinking of that hump that was on the stock that needed to be sanded down to put an extended rail on.  Granted, this was a LONG time ago.
I can’t stand it to think my life is going so fast and I’m not really living it.
5/12/2025 9:23:04 PM EDT
[#37]
Quote History
Originally Posted By Dissident:


My bad.  I was thinking of that hump that was on the stock that needed to be sanded down to put an extended rail on.  Granted, this was a LONG time ago.
View Quote

I haven’t seen a stock from Steyr needing to sand off the hump in quite a long time. The last stock I got that needed that was a 6th gen Austrian 9mm kit from the original batch. That was almost 10 years ago now.
5/13/2025 11:56:30 AM EDT
[#38]
Quote History
Originally Posted By 80085:

I haven’t seen a stock from Steyr needing to sand off the hump in quite a long time. The last stock I got that needed that was a 6th gen Austrian 9mm kit from the original batch. That was almost 10 years ago now.
View Quote View All Quotes
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Quote History
Originally Posted By 80085:
Originally Posted By Dissident:


My bad.  I was thinking of that hump that was on the stock that needed to be sanded down to put an extended rail on.  Granted, this was a LONG time ago.

I haven’t seen a stock from Steyr needing to sand off the hump in quite a long time. The last stock I got that needed that was a 6th gen Austrian 9mm kit from the original batch. That was almost 10 years ago now.


Well, I did say it was a LONG time ago.
I can’t stand it to think my life is going so fast and I’m not really living it.
5/13/2025 11:39:17 PM EDT
[#39]
Quote History
Originally Posted By Dissident:


Well, I did say it was a LONG time ago.
View Quote

Right. I think the hump days are long gone.
5/14/2025 1:58:14 PM EDT
[#40]
The Australians were able to use an extended rail and keep the hump


5/26/2025 9:25:36 AM EDT
[#41]
Maybe Microtech Knives can figure it out and offer something else. LOL
5/26/2025 12:24:24 PM EDT
[#42]
I like the hump
5/28/2025 9:53:36 AM EDT
[#43]
This "hump" that everyone is complaining about...is that the slight raised area around the from sling-swivel attachment point, front of the rail near the gas block?

Is the benefit of the AUG M2 that is has a little bit more rail space forward of where that hump is on the M1? Is that it?

p.s. I shot my AUG at another local 2-gun match. It hit everything I aimed at from 1-200 yards. I didn't drop it, throw it, or beat any barricades with it but still no cracks or breaks in the stock and the left side ejection port has behaved and stayed put without any problems.
5/28/2025 10:58:49 AM EDT
[#44]
Quote History
Originally Posted By ITCHY-FINGER:
This "hump" that everyone is complaining about...is that the slight raised area around the from sling-swivel attachment point, front of the rail near the gas block?

Is the benefit of the AUG M2 that is has a little bit more rail space forward of where that hump is on the M1? Is that it?

p.s. I shot my AUG at another local 2-gun match. It hit everything I aimed at from 1-200 yards. I didn't drop it, throw it, or beat any barricades with it but still no cracks or breaks in the stock and the left side ejection port has behaved and stayed put without any problems.
View Quote

I have no idea what hump is being referred to but thanks for the feedback on use of your AUG during a competitive course. I have thought about taking mine to carbine classes in the past but always end up taking one of my DDM4s.
Be free or do not be
5/29/2025 8:39:05 PM EDT
[#45]
This "hump" that everyone is complaining about...is that the slight raised area around the from sling-swivel attachment point, front of the rail near the gas block?
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 No.
5/31/2025 8:01:36 AM EDT
[#46]
There is a "hump" on the aluminum A3 M1 receiver that has an integral sling swivel pocket in it, while the A3 and A3 M2 receivers are flat at the front.

There are some (mostly earlier, and mostly full auto) AUG stocks that have a hump in the plastic on the top right behind the back edge of the receiver.  This has been milled off stocks at the factory for years, if you look close you can actually see where the plastic has been milled away.  Stocks that have the plastic "hump" preclude the use of certain top rails that extend backwards.  I actually designed our AUG Cantilever Forend to accommodate stocks with that hump, and took a lot of sh*t from some people for doing that.

I will try to take some pics and post them to clarify.

Sven
Manticore Arms

Advanced Fighting Gear for the AR, AK, AUG, Tavor, and Scorpion EVO! www.manticorearms.com
5/31/2025 10:04:55 AM EDT
[#47]
Quote History
Originally Posted By Manticore_Arms:
There is a "hump" on the aluminum A3 M1 receiver that has an integral sling swivel pocket in it, while the A3 and A3 M2 receivers are flat at the front.

There are some (mostly earlier, and mostly full auto) AUG stocks that have a hump in the plastic on the top right behind the back edge of the receiver.  This has been milled off stocks at the factory for years, if you look close you can actually see where the plastic has been milled away.  Stocks that have the plastic "hump" preclude the use of certain top rails that extend backwards.  I actually designed our AUG Cantilever Forend to accommodate stocks with that hump, and took a lot of sh*t from some people for doing that.

I will try to take some pics and post them to clarify.

Sven
Manticore Arms

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Thanks for clarifying that.

I found that to be a less than ideal sling attachment point (for me) as it interfered with the charging handle. I put one of these on the top rail and it has worked great for my use. (Not my pic)

Be free or do not be
5/31/2025 4:50:10 PM EDT
[#48]
Used the same sling attachment on mine. Much better than the factory.
" Don't cry, nobody shoots Glocks anymore."

"But the new Admin. is a Master in IDPA"
"MASTER in IDPA..."

"is like C Class in IPSC!"
5/31/2025 11:18:32 PM EDT
[#49]
Quote History
Originally Posted By Manticore_Arms:
There is a "hump" on the aluminum A3 M1 receiver that has an integral sling swivel pocket in it, while the A3 and A3 M2 receivers are flat at the front.

There are some (mostly earlier, and mostly full auto) AUG stocks that have a hump in the plastic on the top right behind the back edge of the receiver.  This has been milled off stocks at the factory for years, if you look close you can actually see where the plastic has been milled away.  Stocks that have the plastic "hump" preclude the use of certain top rails that extend backwards.  I actually designed our AUG Cantilever Forend to accommodate stocks with that hump, and took a lot of sh*t from some people for doing that.

I will try to take some pics and post them to clarify.

Sven
Manticore Arms

View Quote
@Manticore_Arms
Can you take a look at the picture I posted above of the Australian AUG and tell me how they dealt with the hump? It looks like they widened the rail to go around it, then skeletonized the hell out of it with lightening cuts to reduce weight
6/1/2025 3:56:30 PM EDT
[#50]
Quote History
Originally Posted By mcantu:
@Manticore_Arms
Can you take a look at the picture I posted above of the Australian AUG and tell me how they dealt with the hump? It looks like they widened the rail to go around it, then skeletonized the hell out of it with lightening cuts to reduce weight
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Quote History
Originally Posted By mcantu:
Originally Posted By Manticore_Arms:
There is a "hump" on the aluminum A3 M1 receiver that has an integral sling swivel pocket in it, while the A3 and A3 M2 receivers are flat at the front.

There are some (mostly earlier, and mostly full auto) AUG stocks that have a hump in the plastic on the top right behind the back edge of the receiver.  This has been milled off stocks at the factory for years, if you look close you can actually see where the plastic has been milled away.  Stocks that have the plastic "hump" preclude the use of certain top rails that extend backwards.  I actually designed our AUG Cantilever Forend to accommodate stocks with that hump, and took a lot of sh*t from some people for doing that.

I will try to take some pics and post them to clarify.

Sven
Manticore Arms

@Manticore_Arms
Can you take a look at the picture I posted above of the Australian AUG and tell me how they dealt with the hump? It looks like they widened the rail to go around it, then skeletonized the hell out of it with lightening cuts to reduce weight



I am wondering if they shaved the stock "hump" on each side- I just don't see how a 0.624" wide picatinny rail can clear the existing hump on a stock, it simply isn't wide enough from what I recall offhand (don't have one in hand to check at the moment)

Sven
Manticore Arms
Advanced Fighting Gear for the AR, AK, AUG, Tavor, and Scorpion EVO! www.manticorearms.com

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