ACR + 2K rds = Broken Gas tube

L

Linkpimp

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Full Member
Minuteman
Apr 29, 2010
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So-Cal / OC Area
#1
Ok.. So here’s the deal…

I have this ACR that I really enjoy shooting.
She had her first major cleaning at 1000 rds and I thought OK cool…. no issues at all everything looks good..

A few months / range trips go by and now I’m at 2k rounds through her. Again it was time for another total strip down.

This time I discovered that my gas tube was broken.. WTF?.. I can tell by looking at it that the tube still preformed as it should have (so no major failure) of the rifle, but I am a little confused about the damage..

Time to come clean..
Speaking of cleaning in between the 1k (about every 300 rds) here’s what she got..

Bore snaked
Oiled

That was it.. Soooo is this my fault for not paying more attention to the tube?

I’m sorry I really don't know?? I’m going to be calling Bushmaster on Monday to see how we can fix this..

I was a little concerned about all of the missing metal and were it went??. I looked at my barrel (real good) cleaned it real good and then looked again and luckily it still looks new…


IDK what do you guys think??

I’m kind of thinking that the metal just failed… But I didn’t really clean it either, but it was only 1k rounds too.. soo IDK??


Anyway on to the pics..


IMG_7760.jpg



IMG_7765.jpg



IMG_7767.jpg



IMG_7768.jpg



IMG_7763.jpg




So what do you think guys?? Was this my fault for not taking proper care of her or was it just a failure of the metal??

Thanks..
 
#4
Re: ACR + 2K rds = Broken Gas tube

You mean the op rod? If you are talking about the cut part on the op rod. It was a design feature that helps scrape away carbon when the Op rod is moving...

Mine had that as well- even before it was fired. All ACRs should have it.

Kevin
 
#5
Re: ACR + 2K rds = Broken Gas tube

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: kchu02</div><div class="ubbcode-body">You mean the op rod? If you are talking about the cut part on the op rod. It was a design feature that helps scrape away carbon when the Op rod is moving...

Mine had that as well- even before it was fired. All ACRs should have it.

Kevin </div></div>

No, he is talking about the shear in the metal at the very front.

Josh
 
#6
Re: ACR + 2K rds = Broken Gas tube

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: kchu02</div><div class="ubbcode-body">You mean the op rod? If you are talking about the cut part on the op rod. It was a design feature that helps scrape away carbon when the Op rod is moving...

Mine had that as well- even before it was fired. All ACRs should have it.

Kevin </div></div>

Hey Kevin..
Your gas tube / rod was is broke / looks the same way on yours too.. IDK that just doesn’t seem right to me?? Can you please spin off your barrel and take a quick look at your tube / rod and let me know.. sorry..

And thanks Man..

Shaun..
 
#12
Re: ACR + 2K rds = Broken Gas tube

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Linkpimp</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: kchu02</div><div class="ubbcode-body">You mean the op rod? If you are talking about the cut part on the op rod. It was a design feature that helps scrape away carbon when the Op rod is moving...

Mine had that as well- even before it was fired. All ACRs should have it.

Kevin </div></div>

Hey Kevin..
Your gas tube / rod was is broke / looks the same way on yours too.. IDK that just doesn’t seem right to me?? Can you please spin off your barrel and take a quick look at your tube / rod and let me know.. sorry..

And thanks Man..

Shaun.. </div></div>

You're in good shape, my ACR was this way before I even fired it....
IMG_0239.jpg
 
#13
Re: ACR + 2K rds = Broken Gas tube


Dude, these guys are all messing with you, your weapon is totally hosed and Bushmaster is totally going to tell you you're out of warranty.

I'll do you a favor and take that boat anchor off your hands for free. Just make sure you pay for the shipping...
 
#15
Re: ACR + 2K rds = Broken Gas tube

Just another reason to justify me not buying one yet. I think I'll wait another year or so and see what the Bushmaster ACR track record looks like then. Or see if Remington sells a Civilian version.
 
#17
Re: ACR + 2K rds = Broken Gas tube

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: merc308</div><div class="ubbcode-body">Just another reason to justify me not buying one yet. I think I'll wait another year or so and see what the Bushmaster ACR track record looks like then. Or see if Remington sells a Civilian version. </div></div>

What's the reason for not buying it? Nothings broke. And, this is Remingtons civilian version.
 
#18
Re: ACR + 2K rds = Broken Gas tube

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: medic103</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: merc308</div><div class="ubbcode-body">Just another reason to justify me not buying one yet. I think I'll wait another year or so and see what the Bushmaster ACR track record looks like then. Or see if Remington sells a Civilian version. </div></div>

What's the reason for not buying it? Nothings broke. And, this is Remingtons civilian version. </div></div>

I just want to see how long it takes for more ACR owners to start posting problems with their rifles too. vid 1 vid 2 If not then that's more than fine with me. Then I'll be more likely to purchase one, and yes the Remington ACR is different than the Bushmaster ACR.
 
#19
Re: ACR + 2K rds = Broken Gas tube

I'm not the ACR defender by no means, but you can find vids or posts about pretty much any gun screwing up. Waiting for kinks to be worked out is fine, I just read the BM forum everyday, and there isn't much bitching going on.

With the exception of the included forends and twist rates, what is the difference between the two?
 
#20
Re: ACR + 2K rds = Broken Gas tube

Looking at the Shot Show pics there are subtle differences between the two. Plus I'd just like to have the Remington version instead of the BM because I've had no problems with any of my Remington firearms ever.
 
#21
Re: ACR + 2K rds = Broken Gas tube

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: merc308</div><div class="ubbcode-body">Looking at the Shot Show pics there are subtle differences between the two. Plus I'd just like to have the Remington version instead of the BM because I've had no problems with any of my Remington firearms ever. </div></div>

They're made on the same machines, and that's straight from the Remington LE guys mouths, not Bushmasters. I'd rather have Remington on my firearms any day of the week myself, but it doesn't make a difference on this gun.

The 5 sided handguard, twist rate, and select fire are the differences. And, you'll be able to buy the handguard and get the twist rate next year.

I've handled and shot both, with about 500 rnds through the Remington select fire, and more through my partners ACR. Same gun.

acr15.jpg



Cool gun, but I prefer my SCAR.
 
#22
Re: ACR + 2K rds = Broken Gas tube

Hey guys..

First and foremost… My deepest apologizes for not knowing and posting up a thread looking for help..

More importantly… Can I please set the record straight…

I LOVE THIS RIFLE.. The only issue I have with it is I paid the 3k for it.. Other than that (yes I’ve built a bridge and crossed it) my only complete is:

It’s a little front heavy..

That’s it.. 2k rounds with no issues at all.. My 14year old son loves shooting it and I hope to get my daughter out shooting it in a few years..

I’ve shoten the SCAR and LOVE IT.. I would get it if the following appalled:
1. Part were available, No barrels, no firing pins, nothing.. Again that’s just what I remember a few months ago when I did a bunch a research on it.. If things have changed?? Then Hell yeah I would get one over the ACR..

But the ACR is just starting to release some aftermarket parts for it (Yahhh-Gaa-hoo-gaa) http://www.bushmaster.com/products.asp?cat=11


And the barrel conversion should be coming out later this year.. (Something to think about)

Anyway.. I just wanted to make sure that you know that Yes.. I screwed up and didn’t know.. sorry..

But I’m not bad talking the ACR either..

Hey thanks for your time team and have a great week..

Shaun.
 
#23
Re: ACR + 2K rds = Broken Gas tube

Yea, the parts thing for the SCAR sucks, but FN has 'em. I'm having mine SBR'd now, but I'd much rather prefer to buy multiple barrels. I'm going to get an ACR within the year, just concentrating on 308's right now.
 
#24
Re: ACR + 2K rds = Broken Gas tube

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: medic103</div><div class="ubbcode-body">Yea, the parts thing for the SCAR sucks, but FN has 'em. I'm having mine SBR'd now, but I'd much rather prefer to buy multiple barrels. I'm going to get an ACR within the year, just concentrating on 308's right now. </div></div>Who did you have do the barrel cut? No problems with chrome flaking? Pics?

I have been contemplating doing this to my SCAR for months now.
 
#25
Re: ACR + 2K rds = Broken Gas tube

Bm,

I'm still waiting on the Form 1, but Tornado Technologies is doing the cut. The are a first class operation and use Class IIIA threading. They adjust the gas port also, to insure suppressed/unsuppressed reliability. Check out their site, they have a pic of a SCAR that they've done.

David
 
#26
Re: ACR + 2K rds = Broken Gas tube

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: merc308</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: medic103</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: merc308</div><div class="ubbcode-body">Just another reason to justify me not buying one yet. I think I'll wait another year or so and see what the Bushmaster ACR track record looks like then. Or see if Remington sells a Civilian version. </div></div>

What's the reason for not buying it? Nothings broke. And, this is Remingtons civilian version. </div></div>

I just want to see how long it takes for more ACR owners to start posting problems with their rifles too. vid 1 vid 2 If not then that's more than fine with me. Then I'll be more likely to purchase one, and yes the Remington ACR is different than the Bushmaster ACR. </div></div>

medic,

Well this guy got his ACR back from Bushmaster after they "Fixed" it. I guess Bushmaster will have to "Fix it Again". If I pay near $2500-$3000 for any type of weapon I would expect it to at least work 99.9% of the time.
 
#27
Re: ACR + 2K rds = Broken Gas tube

With the military Dumping the mk16 Scar in .223, perhaps parts( barrels) will make their way into civilian sales. I showed mine to a machinist that told me if I ever wanted a barrel for it he would make me one.

I think Im going to SBR my SCAR.

I also had a ACR and liked it as well. I just noticed that it is was obviously heavier than the scar and the BUIS were close together with no elevated travel. I personally like iron sights and have only been using them with my scar.
 
#28
Re: ACR + 2K rds = Broken Gas tube

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: medic103</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: merc308</div><div class="ubbcode-body">Looking at the Shot Show pics there are subtle differences between the two. Plus I'd just like to have the Remington version instead of the BM because I've had no problems with any of my Remington firearms ever. </div></div>

They're made on the same machines, and that's straight from the Remington LE guys mouths, not Bushmasters. I'd rather have Remington on my firearms any day of the week myself, but it doesn't make a difference on this gun.

The 5 sided handguard, twist rate, and select fire are the differences. And, you'll be able to buy the handguard and get the twist rate next year.

I've handled and shot both, with about 500 rnds through the Remington select fire, and more through my partners ACR. Same gun.

acr15.jpg



Cool gun, but I prefer my SCAR. </div></div>

I have the hand guard, and collapsing stock already. The 10.5" barrel is on the way. They said about one month till it was ready to ship. Not sure where you got your info but the accessories are out and the Enhanced models have been shipping for a few weeks.
 
#29
Re: ACR + 2K rds = Broken Gas tube

Look at my pic. You don't have that hand guard do you? It's not the enhanced hand guard. Im aware of the stock and enhanced rifle availability, and never stated otherwise. I wasn't aware of the 10.5" barrels shipping from BM. However, some are adapting other barrel makes to fit their ACRs.
I was referring to the other twist rate being available, 1/7 I believe, but don't quote me on that.

I don't claim to be the ACR expert, nor do I champion the rifle. My only point was to the poster who said he's waiting for problems like this to be solved, and this thread doesn't contain a problem.
 
#30
Re: ACR + 2K rds = Broken Gas tube

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: merc308</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: merc308</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: medic103</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: merc308</div><div class="ubbcode-body">Just another reason to justify me not buying one yet. I think I'll wait another year or so and see what the Bushmaster ACR track record looks like then. Or see if Remington sells a Civilian version. </div></div>

What's the reason for not buying it? Nothings broke. And, this is Remingtons civilian version. </div></div>

I just want to see how long it takes for more ACR owners to start posting problems with their rifles too. vid 1 vid 2 If not then that's more than fine with me. Then I'll be more likely to purchase one, and yes the Remington ACR is different than the Bushmaster ACR. </div></div>

medic,

Well this guy got his ACR back from Bushmaster after they "Fixed" it. I guess Bushmaster will have to "Fix it Again". If I pay near $2500-$3000 for any type of weapon I would expect it to at least work 99.9% of the time. </div></div>

Pretty sure that guy is full of shit. 5.56 is all Ive ran through mine, with the exeception of 50 or so heavier .223's for zeroing and a couple groups.

Edit watched the videos, yeah thats the guy that cant figure out what the "U" and the "S" on the gas regulator mean.
 
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