Warning

 

Close

Confirm Action

Are you sure you wish to do this?

Confirm Cancel
BCM
User Panel

Posted: 5/26/2024 8:49:49 PM EDT
Very good review.

Brownells BRN-4 - The U.S. Made HK416
Link Posted: 5/26/2024 9:00:02 PM EDT
[#1]
I am interested
Link Posted: 5/27/2024 7:51:48 PM EDT
[#2]
The finish on them is embarrassing. I’m debating buying a MR556 and throwing the Brownell’s barrel in it though.
Link Posted: 5/27/2024 9:53:00 PM EDT
[#3]
I think he's pushed me over on building one.

That Geissele Mk15 handguard is pretty sweet on there too.
Link Posted: 5/28/2024 7:56:51 PM EDT
[#4]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By -OdieGreen-:
The finish on them is embarrassing. I’m debating buying a MR556 and throwing the Brownell’s barrel in it though.
View Quote


This.  The uppers are billet and supposedly have horrendous tooling marks, and I also saw some people posting on HKPro that were having issues with the BCG as well.
Link Posted: 5/29/2024 7:07:50 PM EDT
[#5]
If you get one be aware that some people, myself included, have had the gasrings on the piston fail at about 400 to 500 rounds. If you get one I would suggest you buy some OEM HK rings from Haus. They're $12, only $2 more expensive than Brownells and I haven't had the HK rings fail yet.

https://www.haus.us.com/product/gas-piston-ring-set-g36-sl8-416-417-mr-series-hk-%F0%9F%87%A9%F0%9F%87%AA/
Link Posted: 6/6/2024 11:07:51 AM EDT
[#6]
I was waiting for them to release a lower but after all the qc issues I've been seeing I just ponied up for an intmilco lower
Link Posted: 6/6/2024 11:10:10 AM EDT
[#7]
Caracal 816 is the answer here.
Link Posted: 6/18/2024 5:38:35 PM EDT
[#8]
Attachment Attached File


Went with a chrome 16" and a B+T MLOK handguard while waiting for the Geissele HK416 Mk15 to go on sale somewhere.  Pretty crazy when a Swiss-made handguard is a lot cheaper than a US one.  My first piston AR after years of resisting and buying native piston guns.  

You can see the machining marks on the receiver but I think the reaction is a little overblown.  Overall quality beyond that seems pretty good.  I did pick up some of the German piston rings just in case.  I have some RAL 8000 spray paint I did the MOE grip and trigger guard with, I'll have to hit the front grip and a PMAG with it at some point.  Probably need to bump the PA 4x back a bit but I don't want to lose the BUIS.
Link Posted: 6/19/2024 3:50:08 PM EDT
[#9]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Findsman:
https://www.ar15.com/media/mediaFiles/35747/PSA_M4A1_BRN-4_JPG-3244700.JPG

Went with a chrome 16" and a B+T MLOK handguard while waiting for the Geissele HK416 Mk15 to go on sale somewhere.  Pretty crazy when a Swiss-made handguard is a lot cheaper than a US one.  My first piston AR after years of resisting and buying native piston guns.  

You can see the machining marks on the receiver but I think the reaction is a little overblown.  Overall quality beyond that seems pretty good.  I did pick up some of the German piston rings just in case.  I have some RAL 8000 spray paint I did the MOE grip and trigger guard with, I'll have to hit the front grip and a PMAG with it at some point.  Probably need to bump the PA 4x back a bit but I don't want to lose the BUIS.
View Quote


@Findsman

Can you post a closeup pic of the machining marks?  I only ask because I have seen some examples that are horrendous, if they aren't too obvious on yours then maybe they fixed it and I'd consider getting one.
Link Posted: 6/19/2024 6:56:07 PM EDT
[#10]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Zeebz:


@Findsman

Can you post a closeup pic of the machining marks?  I only ask because I have seen some examples that are horrendous, if they aren't too obvious on yours then maybe they fixed it and I'd consider getting one.
View Quote

I will definitely do so for you tomorrow!

Some areas are definitely, uh, rougher than others.  The contour at the rear where it mates with the lower in particular.  The upper all together scratches the “tool” itch which is good enough for me though.

I could understand a collector not wanting to deal with it - and I couldn’t say I’d never rebuild it if I stumbled on a cheap stripped 416 upper.  
Link Posted: 6/19/2024 11:53:43 PM EDT
[#11]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Findsman:

I will definitely do so for you tomorrow!

Some areas are definitely, uh, rougher than others.  The contour at the rear where it mates with the lower in particular.  The upper all together scratches the “tool” itch which is good enough for me though.

I could understand a collector not wanting to deal with it - and I couldn’t say I’d never rebuild it if I stumbled on a cheap stripped 416 upper.  
View Quote


Appreciate it!

This is one of the worse offenders I've seen in terms of tooling marks, and mainly where my concern stems from:
Link Posted: 6/19/2024 11:59:16 PM EDT
[#12]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Zeebz:


Appreciate it!

This is one of the worse offenders I've seen in terms of tooling marks, and mainly where my concern stems from:
https://i.redd.it/got-my-brownells-brn-4-and-not-that-happy-v0-a5t998hohezb1.jpg?width=1080&format=pjpg&auto=webp&s=de2d0b5357d4ac791161dfa184f300c3d59a8bd6
View Quote


Oof wow.
Link Posted: 6/20/2024 12:04:50 AM EDT
[#13]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Zeebz:


Appreciate it!

This is one of the worse offenders I've seen in terms of tooling marks, and mainly where my concern stems from:
https://i.redd.it/got-my-brownells-brn-4-and-not-that-happy-v0-a5t998hohezb1.jpg?width=1080&format=pjpg&auto=webp&s=de2d0b5357d4ac791161dfa184f300c3d59a8bd6
View Quote

There’s “we had to compromise for the price point” and then there’s this. Can you imagine the guy running the machines and how little he must care about his job to be okay with making that? Ouch.
Link Posted: 6/20/2024 12:39:23 PM EDT
[#14]
Attachment Attached File


Attachment Attached File


Attachment Attached File


Attachment Attached File


As requested!  The most egregious thing to me is the misalignment of the details between the upper and the lower but for all I know the MR556/HK416 lower would line up perfectly.  Obviously not as much for a PSA M4A1 lower.  

It isn't as terrible as the internet makes out in my opinion.  I do think the choice to machine a billet upper to look like a forged one is pretty silly but I don't know the first thing about making forged uppers so silly choice may be better than no choice.  The market is not exactly awash in MR556/HK416 stripped uppers.  Haus US looks like they do an A5 upper but its only available as part of a complete upper for multiple thousands.  
Link Posted: 6/20/2024 11:25:23 PM EDT
[#15]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Findsman:
https://www.ar15.com/media/mediaFiles/35747/IMG_7064_JPG-3246140.JPG

https://www.ar15.com/media/mediaFiles/35747/IMG_7065_JPG-3246141.JPG

https://www.ar15.com/media/mediaFiles/35747/IMG_7066_JPG-3246142.JPG

https://www.ar15.com/media/mediaFiles/35747/IMG_7067_JPG-3246143.JPG

As requested!  The most egregious thing to me is the misalignment of the details between the upper and the lower but for all I know the MR556/HK416 lower would line up perfectly.  Obviously not as much for a PSA M4A1 lower.  

It isn't as terrible as the internet makes out in my opinion.  I do think the choice to machine a billet upper to look like a forged one is pretty silly but I don't know the first thing about making forged uppers so silly choice may be better than no choice.  The market is not exactly awash in MR556/HK416 stripped uppers.  Haus US looks like they do an A5 upper but its only available as part of a complete upper for multiple thousands.  
View Quote


They sell the A5 upper receiver separately as well: Here
Link Posted: 6/21/2024 1:26:09 AM EDT
[#16]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Mb121:


They sell the A5 upper receiver separately as well: Here
View Quote

Ha, I couldn’t find that to save my life the other day!  Only one left right now and a cool $650.  A project that will wait for another day, as cool as an A5/A8 build might be.

Makes the price of the uglier Brownells receiver (and entire upper assembly!) a little easier to swallow.
Link Posted: 6/21/2024 3:00:14 PM EDT
[#17]
Link Posted: 6/21/2024 3:07:04 PM EDT
[Last Edit: Amish_Bill] [#18]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Brownells:
We appreciate all of your feedback on the receivers. Having customer insight and firsthand experience with our products is incredibly valuable to us, and as such, we've taken your concerns about visible tool paths directly to our vendor to minimize them in future production. We do have some exclusive images of the receivers we are planning to transition to. They are still billet receivers, but with requested mods. You can expect to see them with the BRN-4 uppers sometime in July. Also, stay tuned for additional BRN-4 releases later in 2024.

https://www.ar15.com/media/mediaFiles/126709/IMG_1288__1_-3247250.jpghttps://www.ar15.com/media/mediaFiles/126709/IMG_1289__1_-3247251.jpg
View Quote
It's good to see manufacturers recognizing and acting on feedback like this.

Any chances of the 'substandard stock' being clearanced out to make room for the pretty ones?
Link Posted: 6/21/2024 5:18:38 PM EDT
[#19]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Findsman:


As requested!  The most egregious thing to me is the misalignment of the details between the upper and the lower but for all I know the MR556/HK416 lower would line up perfectly.  Obviously not as much for a PSA M4A1 lower.  
View Quote


Even HK’s sill have that stagger - well, not as dramatic but it is clearly evident there is a misalignment. Both, the uppers and lowers, are machined from forgings and depending on where they index from there can be that result. Whoever drew the model for that probably worked from a staggered one and then the tolerances stacked from there.
Link Posted: 6/22/2024 7:53:40 AM EDT
[#20]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Brownells:
We appreciate all of your feedback on the receivers. Having customer insight and firsthand experience with our products is incredibly valuable to us, and as such, we've taken your concerns about visible tool paths directly to our vendor to minimize them in future production. We do have some exclusive images of the receivers we are planning to transition to. They are still billet receivers, but with requested mods. You can expect to see them with the BRN-4 uppers sometime in July. Also, stay tuned for additional BRN-4 releases later in 2024.

https://www.ar15.com/media/mediaFiles/126709/IMG_1288__1_-3247250.jpghttps://www.ar15.com/media/mediaFiles/126709/IMG_1289__1_-3247251.jpg
View Quote


Awesome.  Like Amish_Bill said it's awesome to see you guys taking the customer feedback seriously and making changes based on said feedback.  It means a lot.

Those receivers look really good and I'll definitely snag an upper now once those new receivers are out.
Link Posted: 6/23/2024 7:12:50 AM EDT
[Last Edit: JTM20] [#21]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Brownells:
We appreciate all of your feedback on the receivers. Having customer insight and firsthand experience with our products is incredibly valuable to us, and as such, we've taken your concerns about visible tool paths directly to our vendor to minimize them in future production. We do have some exclusive images of the receivers we are planning to transition to. They are still billet receivers, but with requested mods. You can expect to see them with the BRN-4 uppers sometime in July. Also, stay tuned for additional BRN-4 releases later in 2024.



https://www.ar15.com/media/mediaFiles/126709/IMG_1288__1_-3247250.jpghttps://www.ar15.com/media/mediaFiles/126709/IMG_1289__1_-3247251.jpg
View Quote


How about some chrome lined M27 barrels
Link Posted: 7/5/2024 1:53:55 AM EDT
[#22]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Brownells:
We appreciate all of your feedback on the receivers. Having customer insight and firsthand experience with our products is incredibly valuable to us, and as such, we've taken your concerns about visible tool paths directly to our vendor to minimize them in future production. We do have some exclusive images of the receivers we are planning to transition to. They are still billet receivers, but with requested mods. You can expect to see them with the BRN-4 uppers sometime in July. Also, stay tuned for additional BRN-4 releases later in 2024.



https://www.ar15.com/media/mediaFiles/126709/IMG_1288__1_-3247250.jpghttps://www.ar15.com/media/mediaFiles/126709/IMG_1289__1_-3247251.jpg
View Quote

That doesnt help us that bought the Fd receivers.
Link Posted: 7/5/2024 8:47:35 AM EDT
[Last Edit: Uys] [#23]
MGW has stripped MR556 uppers in stock.

https://www.midwestgunworks.com/page/mgwi/prod/50235980
Link Posted: 7/7/2024 12:12:50 PM EDT
[#24]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Brownells:
We appreciate all of your feedback on the receivers. Having customer insight and firsthand experience with our products is incredibly valuable to us, and as such, we've taken your concerns about visible tool paths directly to our vendor to minimize them in future production. We do have some exclusive images of the receivers we are planning to transition to. They are still billet receivers, but with requested mods. You can expect to see them with the BRN-4 uppers sometime in July. Also, stay tuned for additional BRN-4 releases later in 2024.



https://www.ar15.com/media/mediaFiles/126709/IMG_1288__1_-3247250.jpghttps://www.ar15.com/media/mediaFiles/126709/IMG_1289__1_-3247251.jpg
View Quote


Man, the ones posted by customers are horrible, by any standard. That's probably the worst machining I've ever seen on any AR receiver and the alignment is pretty far off. Glad to see you guys are recognizing the problem and doing something about it, but where was QC in all this????
Link Posted: 7/18/2024 10:46:43 AM EDT
[Last Edit: Findsman] [#25]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Wolfy42:

That doesnt help us that bought the Fd receivers.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Wolfy42:
Originally Posted By Brownells:
We appreciate all of your feedback on the receivers. Having customer insight and firsthand experience with our products is incredibly valuable to us, and as such, we've taken your concerns about visible tool paths directly to our vendor to minimize them in future production. We do have some exclusive images of the receivers we are planning to transition to. They are still billet receivers, but with requested mods. You can expect to see them with the BRN-4 uppers sometime in July. Also, stay tuned for additional BRN-4 releases later in 2024.



https://www.ar15.com/media/mediaFiles/126709/IMG_1288__1_-3247250.jpghttps://www.ar15.com/media/mediaFiles/126709/IMG_1289__1_-3247251.jpg

That doesnt help us that bought the Fd receivers.

@Brownells Do you suppose you could find customers that bought the first-gen uppers (complete group, stripped, whatever) from order history and perhaps offer them discount on the revised receiver?  As long as you guys didn't Rocksett the barrels into place or anything I think I'd be fine swapping the receiver out myself.  I got the barrel wrench last week so I feel like I have some BRN-4/HK416 mad skills now, haha.  


ETA - Got a blemished Mk15 handguard from the Geissele July 4th sale.  Really really nice upgrade!

Attachment Attached File
Link Posted: 7/21/2024 6:49:55 PM EDT
[#26]
The BRN-4 complete BCG is now listed as, "no longer available" on Brownell's.  Curious what that is about.
Link Posted: 7/24/2024 10:46:07 AM EDT
[#27]
Are these worth checking out? Or am I better off just going with an HK factory MR556?
Link Posted: 7/24/2024 3:06:01 PM EDT
[#28]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By wayfaerer320:
Are these worth checking out? Or am I better off just going with an HK factory MR556?
View Quote



I have owened both and currently own 3 HKs, 1 Factory MR 556 and 2 Clones that are most HK parts

The BRN-4 is a very affordable alternative to a real HK but you can't build one without a BCG, which Brownells no longer offers

So there's that
Link Posted: 7/24/2024 6:15:12 PM EDT
[#29]
Brownells response on the Industry page -

"No plans to sideline the BRN-4 on our end and we welcome you to the fan club!"
Link Posted: 7/27/2024 7:37:30 AM EDT
[#30]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By wayfaerer320:
Are these worth checking out? Or am I better off just going with an HK factory MR556?
View Quote


Unless Brownells starts offering lowers, I’d say go for an MR556. The current options are very expensive and either hard to get (IntMilCo) or have a very spotty track record (STS).
Link Posted: 7/27/2024 1:18:28 PM EDT
[#31]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By JTM20:


Unless Brownells starts offering lowers, I’d say go for an MR556. The current options are very expensive and either hard to get (IntMilCo) or have a very spotty track record (STS).
View Quote




What's "spotty” about STS's track record

They have had minor quality control escapes but they seem to quickly remedy all issues they are told about

I have a factory  MR 556 A1 and two A5 clones, one of which is complete except for an HK BCG

The only way to get the A5 version is to go with a clone receiver set

My 14.5 has an STS lower mated to a Haus upper and I plan to buy another STS lower to complete my SBR




Link Posted: 7/27/2024 2:17:34 PM EDT
[#32]
Brownell's said they would have other offerings.  I'm not sure if that means Lowers also.

Not a big fan of the HK lower due to the flat (non-angled) magwell, but I do like that its flared.
Link Posted: 7/28/2024 2:00:21 AM EDT
[#33]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By 0351:
Brownell's said they would have other offerings.  I'm not sure if that means Lowers also.

Not a big fan of the HK lower due to the flat (non-angled) magwell, but I do like that its flared.
View Quote



A HK A5 lower is tapered like a mil-spec ar lower
Link Posted: 7/28/2024 5:06:51 PM EDT
[Last Edit: JTM20] [#34]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By BobaDebt:




What's "spotty” about STS's track record

They have had minor quality control escapes but they seem to quickly remedy all issues they are told about

I have a factory  MR 556 A1 and two A5 clones, one of which is complete except for an HK BCG

The only way to get the A5 version is to go with a clone receiver set

My 14.5 has an STS lower mated to a Haus upper and I plan to buy another STS lower to complete my SBR


https://i.imgur.com/nIN93Pw.jpg

View Quote


Then i guess I’m just unlucky. I’ve gotten 2 lowers from them (the second was a replacement) and both have been out of spec. I placed my order back in November of last year and as of now I still don't have a usable lower.

And while I appreciate the owner’s good communication, it’s been an incredibly frustrating process, especially considering how much these lowers cost.
Link Posted: 7/28/2024 8:02:56 PM EDT
[#35]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By BobaDebt:



A HK A5 lower is tapered like a mil-spec ar lower
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By BobaDebt:
Originally Posted By 0351:
Brownell's said they would have other offerings.  I'm not sure if that means Lowers also.

Not a big fan of the HK lower due to the flat (non-angled) magwell, but I do like that its flared.



A HK A5 lower is tapered like a mil-spec ar lower


Yeah, I’d like them to do a run of A5 style lowers, even if not ambi.
Link Posted: 7/28/2024 11:40:39 PM EDT
[Last Edit: BobaDebt] [#36]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By G3k:


Yeah, I’d like them to do a run of A5 style lowers, even if not ambi.
View Quote



The Magwell and the ambi features are what set the A5 lower apart from the A1

Plus most manufacturers are moving toward truly ambidextrous lowers and people seem to be evolving to learn how to use ambi features is ways they were not designed to be used

I’m right handed and I prefer to use my right hand to operate the bolt and mag functions

Link Posted: 7/29/2024 2:01:26 PM EDT
[#37]
Short Story: Brownells seems to have BRN-4 Bolt Carrier Groups in stock



Long Story:

I was pretty disappointed last week when Uys posted  


Then on the 25th (last Thursday) I woke up to a “Back in Stock” notification email for the BCG so I tried to order one

Everything went well until I tried to pay at which time I got a message that they could not process my payment and to try again later

Knowing  that others may have received this notice and that the BCG would probably sell out fast I called to ask why they couldn’t process my payment

Originally they said it was because the item was out of stock to which I asked then why did I receive a “Back in Stock” notice

They blamed it on a glitch but the CSR checked the warehouse and when she got back to me she said they could fill thier order but I had to do it over the phone

They shipped it out the same day and I just received it so there is something going on

I am glad I was able to get one because I am thinking about stripping one of my HK MR 556 Rifles for parts to finish my clones and the plan was to replace the HK parts with BRN-4 parts and offer the complete rifle a deeply discounted price with full disclosure about the BRN-4 Parts


BTW – The BCG still shows ON STOCK on the web site







Link Posted: 7/29/2024 7:17:11 PM EDT
[#38]
I am glad the "No Longer Available" listing was wrong.  I have not gotten one, curious of the quality and fit.
Link Posted: 7/30/2024 2:54:55 AM EDT
[#39]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Uys:
I am glad the "No Longer Available" listing was wrong.  I have not gotten one, curious of the quality and fit.
View Quote



The one I recived today moves freely in my Factory upper and both of my Haus A5 Uppers

It's on sale for $199 plus you can use a 15% off coupon so it's worth at least that much
Link Posted: 8/4/2024 5:48:13 PM EDT
[#40]
My upper is dead, again. The original Brownells gas rings survived a nominal 400 rounds before they failed and I replaced them. Survived 70ish rounds on the new OEM HK gas rings . When I get around taking it apart I'll post pictures and see what @brownells has to say but there must be something wrong with the gas system
Link Posted: 8/5/2024 3:45:28 PM EDT
[#41]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By R3dundantC:
My upper is dead, again. The original Brownells gas rings survived a nominal 400 rounds before they failed and I replaced them. Survived 70ish rounds on the new OEM HK gas rings . When I get around taking it apart I'll post pictures and see what @brownells has to say but there must be something wrong with the gas system
View Quote


Was this a complete BRN4 upper from Brownells or are you using a combo of HK and Brownells parts?  I was thinking about getting a barrel and BCG, but I am having second thoughts.
Link Posted: 8/5/2024 10:21:25 PM EDT
[#42]
I ordered it in December 2022 and it is an apparent mix of parts. Lucked out and got one of the HK receivers. Honestly, the BRN4 has been a shitshow since the day I purchased it, so much so that I made a thread in the Industry forum about my problems just ordering it. Read the drama here if you want https://www.ar15.com/forums/Industry/BRN-4-Ordeal/333-303564/ which by the way Brownells never did any followup on despite me sending them the info that they requested. I didn't fuss about that because at that point the damage was done and the situation was more or less resolved.

The scary part now is the fact that these uppers are not holding up and I nearly had to use it in a legitimate self defense scenario against a mentally ill man in body armor on the 31st which I will not get into further details on as its not relevant. Even if we get all the issues with the BRN4 worked out at this point I have firmly moved it from "tool" to "toy" in my mind.

I'm not gonna freak out and pull a buttblasted Boomer and scream and yell over this. However, I am sitting here with my mouth ajar and awestruck at just how badly Brownells has fucked this up. The BRN4 should be in textbooks as the prime example of product development and customer service failure.
Link Posted: 8/5/2024 11:21:57 PM EDT
[#43]
Good to know.  I have an MR556 upper receiver, bbl nut and gas block that I thought about making another complete upper with a BRN4 bbl and BCG.
There are a few reviews on the Brownells website regarding the barrels that have given me pause.
It'd be around $1300 if I held out for an NA chrome-lined bbl and
HK BCG.  A while back I got an MR carrier for $379 on sale and a new HK bolt for $269.  Haven't seen any decent prices lately.   I've had no issues with HK complete uppers/parts or the NA barrel I got a few years back.
Link Posted: 8/6/2024 11:11:25 AM EDT
[Last Edit: JohnnyLoco] [#44]
I got a Sig 516 contract overrun 14.5 upper, cl barrel, fa bolt, for 499 I think directly from Sig. LMT lower, pin and weld fh/suppressor mount. I like HKs but I’ll pass.
Link Posted: 8/11/2024 7:36:59 PM EDT
[#45]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By R3dundantC:
My upper is dead, again. The original Brownells gas rings survived a nominal 400 rounds before they failed and I replaced them. Survived 70ish rounds on the new OEM HK gas rings . When I get around taking it apart I'll post pictures and see what @brownells has to say but there must be something wrong with the gas system
View Quote


Are you using a suppressor? I had a 416 clone line 8 years ago that would eat it's piston gas rings because it was overgassed af with a silencer.
Link Posted: 8/11/2024 7:54:54 PM EDT
[#46]
I must be the exception. Granted, my BRN upper is a mix of parts - mostly HK at this point. Upper receiver was an actual HK in the package.
That's what I wanted.

Barrel is Brownells - bolt is now HK and, again, most parts are HK.
It's been working magnificently. Suppressed or unsuppressed.

I am sorry to hear about people's misfortunes with theirs.
Mine:

416 Clone and Staccato C2 ACRO by Solo__, on Flickr

Close Join Our Mail List to Stay Up To Date! Win a FREE Membership!

Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!

You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.


By signing up you agree to our User Agreement. *Must have a registered ARFCOM account to win.
Top Top