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TX, USA
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Posted: 1/17/2020 4:09:09 PM EDT
[#1]
Anybody looked into putting an agp folding stock on theirs?
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USA
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Posted: 1/17/2020 8:47:19 PM EDT
[#2]
Maybe a better option? Sig adapter
https://www.sigsauer.com/store/sig-sauer-stock-adapter-1913-interface-folding-knuckle.html And KNS sig rail adapter https://www.knsprecisioninc.com/product/ar-mcx-stock-adapter-with-flange/ Cheaper option... |
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Posted: 1/18/2020 12:54:23 PM EDT
[#3]
Quote HistoryOriginally Posted By M4A1SOPMOD:
Anybody looked into putting an agp folding stock on theirs? |
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Posted: 1/19/2020 3:35:50 PM EDT
[#4]
Whipped up an alternate buttstock this week.
The Choate butt is quite a bit flatter side-side that the Armalite. Plus it has a definite retro vibe. 
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Posted: 1/26/2020 8:46:11 PM EDT
[#5]
No one is mentioning the new Brownells BRN 180 lowers???
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Posted: 1/27/2020 8:23:55 AM EDT
[#6]
They've been discussed in several other threads.
Opinions vary quite a bit. |
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USA
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Posted: 1/27/2020 10:05:10 AM EDT
[#7]
Quote HistoryOriginally Posted By mike_nds:
Whipped up an alternate buttstock this week. The Choate butt is quite a bit flatter side-side that the Armalite. Plus it has a definite retro vibe. https://www.AR15.Com/media/mediaFiles/91277/1815stk_a_JPG-1240827.jpg https://www.AR15.Com/media/mediaFiles/91277/1815stk_b_JPG-1240828.jpg https://www.AR15.Com/media/mediaFiles/91277/1815stk_c_JPG-1240829.jpg https://www.AR15.Com/media/mediaFiles/91277/1815stk_d_JPG-1240830.jpg |
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Posted: 1/27/2020 6:06:42 PM EDT
[#8]
Thanks, it's just a test mule at this point.
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CA, USA
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Posted: 1/28/2020 1:49:42 PM EDT
[#9]
Has anyone tested return to zero with iron sights? Very interested in purchasing the 180S and mounting an ANVL UKON somewhere at the rear of the handguard closest to the receiver.
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Posted: 1/28/2020 3:38:49 PM EDT
[#10]
I have not mounted irons on my uppers yet, but having taken the handguards on/off many times I can say that you won't lose zero.
Those baby's are TIGHT. |
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USA
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Posted: 1/28/2020 4:03:38 PM EDT
[#11]
Sweet. I've tried the UKON on an AR and it sits too low for a comfortable cheekweld. Being that the top rail is raised, should be just right on the BRN-180/S.
Thanks Mike |
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USA
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Posted: 1/28/2020 6:30:49 PM EDT
[#12]
So I keep looking at images of the upper. Can any owners possibly confirm if the top rail is taller than a standard upper? If, not I'll probably bite the bullet and just get a folding stock that lowers the cheek a smidge for use of the UKON.
Thanks |
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Posted: 1/28/2020 6:40:57 PM EDT
[Last Edit: mike_nds]
[#13]
1.925" tall (bottom to top of pic rail)
But we don't have a flat top upper in the shop to compare it to.................. 
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Posted: 1/28/2020 6:41:18 PM EDT
[Last Edit: mike_nds]
[#14]
double tap
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USA
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Posted: 1/28/2020 7:02:49 PM EDT
[Last Edit: slade_w]
[#15]
Measurement works for me brother. Much appreciated. Measured a flat top and got 1.838". I do believe its gonna work for me. Oh I'm itching to get one now. Just gotta wait for a Brownells coupon code haha.
Thanks again Mike |
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Posted: 1/29/2020 9:37:53 PM EDT
[#16]
It may have been discussed and I missed it.... any Left handed experience with the BRN180? How does the brass eject and any issues with the charging handle? TIA!
WP |
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USA
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Posted: 1/31/2020 12:24:51 AM EDT
[#17]
Full30: Small Arms Solutions: BRN-180 evolution
interesting discussion, however, shooting results at the end of the video are disappointing, 6MOA rifle... |
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USA
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Posted: 1/31/2020 10:16:28 AM EDT
[#18]
Quote HistoryOriginally Posted By rpoL98:
Full30: Small Arms Solutions: BRN-180 evolution interesting discussion, however, shooting results at the end of the video are disappointing, 6MOA rifle... |
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MA, USA
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Posted: 1/31/2020 12:43:27 PM EDT
[Last Edit: Boris_Build]
[#19]
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MA, USA
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Posted: 1/31/2020 1:24:42 PM EDT
[#20]
Quote HistoryOriginally Posted By DannerTrax: Maybe the shooter is 6MOA. Now as far as the statement in the vid that BRN-180 bolt is "the same", you can't be further from the truth. That bolt is 20% lighter than AR180 bolt. In fact if you look at similar bolts, they all fall within certain weight range for a good reason. A lighter bolt is ok for range time, but I'd not trust my life to it. BRN180 bolt is on the left, can't miss it: 
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Posted: 1/31/2020 7:14:03 PM EDT
[#21]
Quote HistoryOriginally Posted By Boris_Build: Frankly I am surprised that he got 6moa, if I saw recruit pull his shoulder anticipating recoil like that I'd kick his ass and send him on marshbrosok until he looses his shit. Now as far as the statement in the vid that BRN-180 bolt is "the same", you can't be further from the truth. That bolt is 20% lighter than AR180 bolt. In fact if you look at similar bolts, they all fall within certain weight range for a good reason. A lighter bolt is ok for range time, but I'd not trust my life to it. BRN180 bolt is on the left, can't miss it: https://i.ibb.co/3R0PHJh/22.png |
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USA
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Posted: 1/31/2020 10:07:22 PM EDT
[Last Edit: rpoL98]
[#22]
Quote HistoryOriginally Posted By rpoL98:
Full30: Small Arms Solutions: BRN-180 evolution interesting discussion, however, shooting results at the end of the video are disappointing, 6MOA rifle... Quote HistoryOriginally Posted By rpoL98:
Full30: Small Arms Solutions: BRN-180 evolution interesting discussion, however, shooting results at the end of the video are disappointing, 6MOA rifle... Originally Posted By DannerTrax:
Maybe the shooter is 6MOA.  Brownells BRN-180 Piston Upper Receiver Review |
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MA, USA
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Posted: 2/1/2020 2:00:04 PM EDT
[#23]
Quote HistoryOriginally Posted By col_hapablap: I started a thread about carrier to bolt wejght ratio awhile ago. Consensus was ratio was not a big deal. And there are more than a few guns with low carrier to bolt weight ratios. In the case of the brn, i would think it has a heavier carrier than the mcx. Btw this link has carrier and bolt weight data for many firearms: http://sturgeonshouse.ipbhost.com/topic/753-bolt-carrierbolt-mass-ratio/ Where I am coming from was experimentation with very short AK gas systems, building AR rifles. "Manufacturing imperfections" slow bolt down enough that it fails to cycle. Quantifying "manufacturing imperfections" is pretty hard, especially on one-of builds. Heavier bolts work more reliably since they have energy to spare in case of imperfections, lack of lubrication, damaged magazines etc. When your setup has flawless surfaces, well lubricated and dimensionally perfect, I can see that even smaller bolt/carrier would work, but reducing mass is not a good idea. On BRN-180, there is no luxury of space, so I can understand why bolt had to be shortened, but it would not improve reliability and by that I mean more than running few mags through, which is what most reviewers do, including the gent in the referenced video clip. |
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MI, USA
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Posted: 2/6/2020 11:32:49 PM EDT
[#24]
I just built this one on a AR180S.com ( BIGRIXS) 80% lower. I did the Armalite engraving on it. I will be testing it out tomorrow in the cold weather here. |
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IA, USA
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Posted: 2/7/2020 1:18:26 PM EDT
[Last Edit: conda]
[#25]
Quote HistoryOriginally Posted By wparkinson:
It may have been discussed and I missed it.... any Left handed experience with the BRN180? How does the brass eject and any issues with the charging handle? TIA! WP |
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Posted: 2/8/2020 7:03:54 AM EDT
[#26]
Quote HistoryOriginally Posted By conda: I have shot my BRN-180 left handed, no concerns with the charging handle, brass ejects back at an angle enough that you will not get brass in the face, but you may get brass inside your right arm elbow. I had a piece of brass land there and give me a slight burn. Other than that, no concerns. |
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AZ, USA
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Posted: 2/8/2020 11:35:11 PM EDT
[Last Edit: Howlin_Mad]
[#27]
I have two BRN-180 uppers, one 16" and one 10.5".
Took them to the range today to sight them in. Used a Holosun with 3X magnifier on both of them. Using my old standby reloads of 26.1 of WW748 with 55gr Hornady bulk bullets. Has shot better than 4 MOA in every rifle I've ever tried, and the good ones have even done <1 MOA. Good day today, mid 60's, no wind to speak of. Got 2.75" groups at 200 yards with the 16", and 5.5" groups from the short one. The Holosun on the short one has a slight flare, and had a little trouble with a consistent sight picture. I'm sure it is capable of better. Overall, very pleased, especially with the 16", about what I expected with the 10.5". Good enough for what I will use them for. With some development, they certainly would do even better. ETA: Guns have been flawless so far. Even managed a fairly rapid emptying of an ATI 60 rounder with the short one. |
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VA, USA
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Posted: 2/15/2020 9:09:50 AM EDT
[#28]
Seems to me bolt/carrier total weight is only meaningful in the context of the design of the upper. Comparisons to DI uppers or other piston uppers would be meaningless.
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USA
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Posted: 2/29/2020 12:48:55 AM EDT
[Last Edit: rpoL98]
[#29]
did a mockup of ACE folding stock on an 80% lower, just to see how it all fit together. at first, had it folding to the left, but the combined width of the charging handle on the right, and the folded stock on the left, was bulky. so reassembled it with the stock folding to the right. the stock fits under the knob of the charging handle, but the upper bar of the folded stock would probably interfere with shooting: ejected brass would bounce off the stock upper bar, possibly back into the ejection port. Dunno, will have to try it out when i get it mounted on a real lower. But, probably, this stock would need to fold to the left to make it shootable. Really would like to see a folding charging handle. Replaced flash hider with a VG6 brake.
(please ignore the goofy pistol grip) 
revised pic, with QD end-plate. 
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SC, USA
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Posted: 3/7/2020 8:04:54 PM EDT
[Last Edit: Mikes71Camaro]
[#30]
Ive got around 500 rounds through mine so far. It was tight going onto the receiver at first but after a dozen full mags through it it has loosened up to be acceptable now. I have no idea what the adjustable gas plug is supposed to accomplish though even with a suppressor . It has two setting 1. work and 2. dont work. Accuracy is really ammo dependent. Scattergun with wolf 5.56 and reasonably acceptable 1-2 inch with 62 grain mil spec.
I used an MDT folder attachment and had to machine down the buffer plug as those things are made for chassis guns and not for AR's but it turned out great. It did take me a little while to get that stupid flash suppressor off until I realized the nut in back was a jam nut and not part of the flash suppressor. This receiver is temporary until the stamp comes on my New Frontier folding lower. 
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IA, USA
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Posted: 3/10/2020 7:41:49 PM EDT
[#31]
Quote HistoryOriginally Posted By Mikes71Camaro:
have no idea what the adjustable gas plug is supposed to accomplish though even with a suppressor . It has two setting 1. work and 2. dont work. Accuracy is really ammo dependent |
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SC, USA
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Posted: 3/10/2020 8:17:21 PM EDT
[#32]
Witht he short barrel it does nothing on suppressed mode even with the suppressor attached. I will say though that I am using a 30 cal Specwar silencer so internal pressures are probably not as high as with a 223 can..
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AZ, USA
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Posted: 3/14/2020 12:14:16 AM EDT
[#33]
InRangeTv got their hands on one for the infamous mud test.
https://www.full30.com/watch/MDI0NjE5/mud-test-brownells-brn-180 |
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Posted: 3/14/2020 10:39:15 AM EDT
[#34]
Quote HistoryOriginally Posted By Howlin_Mad:
InRangeTv got their hands on one for the infamous mud test. https://www.full30.com/watch/MDI0NjE5/mud-test-brownells-brn-180 |
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SC, USA
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Posted: 3/16/2020 7:21:52 AM EDT
[#35]
Just got the stamp back on my new frontier folding receiver AR lower .
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Posted: 3/16/2020 8:06:21 AM EDT
[#36]
Quote HistoryOriginally Posted By Mikes71Camaro:
Just got the stamp back on my new frontier folding receiver AR lower . https://imagizer.imageshack.com/v2/1646x926q90/923/dZhFpn.jpg https://imagizer.imageshack.com/v2/1253x705q90/923/5ocryj.jpg |
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AZ, USA
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Posted: 3/17/2020 12:54:37 PM EDT
[#37]
Quote HistoryOriginally Posted By Mikes71Camaro:
Just got the stamp back on my new frontier folding receiver AR lower . https://imagizer.imageshack.com/v2/1646x926q90/923/dZhFpn.jpg https://imagizer.imageshack.com/v2/1253x705q90/923/5ocryj.jpg
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SC, USA
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Posted: 3/17/2020 1:06:41 PM EDT
[Last Edit: Mikes71Camaro]
[#38]
How come my pics don't do that by themselves?
Form 1's are just flying out the door these days . One thing I would like is a straight charging handle. Probably have to make one myself. |
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OR, USA
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Posted: 3/17/2020 8:41:42 PM EDT
[#39]
With a straight charging handle mabye in a couple option i think i will pick one up.
-sigadvantage- |
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FL, USA
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Posted: 3/18/2020 8:01:37 AM EDT
[#40]
I asked in the industry forum about the charging handles and they said they were coming but didn't have a date. its the only thing I really don't like about it.
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SC, USA
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Posted: 3/18/2020 9:49:18 AM EDT
[Last Edit: Mikes71Camaro]
[#41]
Yeah they really need to rethink the whole AR-18 nostalgia thing and just go with it as its own weapons platform. No one cares about the bent charging handle. It hits some scope mounts and only makes sense if you have a right side folder and who would anyone want a right side folder? The charging handle has got to be the easiest part of the gun to produce. I'd be all over a straight one.
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USA
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Posted: 3/19/2020 5:54:19 PM EDT
[#42]
Quote HistoryOriginally Posted By Mikes71Camaro:
Yeah they really need to rethink the whole AR-18 nostalgia thing and just go with it as its own weapons platform. No one cares about the bent charging handle. It hits some scope mounts and only makes sense if you have a right side folder and who would anyone want a right side folder? The charging handle has got to be the easiest part of the gun to produce. I'd be all over a straight one. the devil is in those pesky little details. |
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SC, USA
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Posted: 3/19/2020 8:58:12 PM EDT
[#43]
The AR180B functioned fine without it .
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ID, USA
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Posted: 3/20/2020 8:49:12 AM EDT
[#44]
Quote HistoryOriginally Posted By Boris_Build:
smaller version of SA80 built on top of BRN-180 upper https://i.ibb.co/W6vx4F4/19.png Write-up: Let’s build Brit bullpup SA80 https://i.ibb.co/8cstGqP/18.png https://i.ibb.co/74GDcSS/24.png |
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AZ, USA
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Posted: 3/27/2020 2:32:05 PM EDT
[#45]
Board at home so I started working on a little project.
 Left to right. BRN180, Early/Prototype 180B, 3D Printed version to check dimensions, Aluminum version for range testing.  
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USA
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Posted: 3/31/2020 7:42:31 AM EDT
[#46]
Quote HistoryOriginally Posted By mike_nds: The one in that photo isn't ready yet. I'm trying to get Armalite to do a run of buttstocks but so far they have been non-responsive. We do have another plan just in case. Any updates on the retro butt stock? Thx |
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Posted: 3/31/2020 9:17:24 AM EDT
[#47]
Nothing to report yet.
It's still going to happen, but some things have to be nailed down first. |
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OH, USA
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Posted: 4/13/2020 2:01:40 PM EDT
[Last Edit: ROK_Fever]
[#48]
I've read this thread, and there's a lot of information--some of which I agree and some of which is pure diarrhea. I pre-ordered my BRN-180s in June, 2019 and received my FIRST one in October. I tested it for accuracy--10 shot groups at 100 yards--and got horrible dispersion, 4-5 MOA MEAN RADIUS. I returned it to Brownells and received my 2nd BRN-180s in November, 2019, which tested much better, at 1.4 to 2.4 MOA MEAN RADIUS (10-shot groups at 100 yards). I tested with 3 different ammo types: 55, 62, and 77gr. By comparison my other, DI, AR-15 uppers measure about 0.6 to 1.1 MOA MEAN RADIUS about half of the dispersion. The BRN-180s 10.5" isn't a tack-driver like my other AR-15's, but the 1-2 MOA performance is acceptable in my opinion for most 100-300 yard work, and it definitely has some advantages. It definitely has less recoil than my similar, 11.5" BCM upper. I have a dedicated (SBR'ed) lower with a folding stock, and overall it feels "solid."
I'll keep it. |
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IA, USA
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Posted: 4/22/2020 10:11:56 PM EDT
[#49]
Quote HistoryOriginally Posted By ROK_Fever: I pre-ordered my BRN-180s in June, 2019 and received my FIRST one in October. I tested it for accuracy--10 shot groups at 100 yards--and got horrible dispersion, 4-5 MOA MEAN RADIUS. I returned it to Brownells and received my 2nd BRN-180s in November, 2019, which tested much better, at 1.4 to 2.4 MOA MEAN RADIUS (10-shot groups at 100 yards). There is a good chance that your upper had a barrel that had either come loose or was about to. I saw accuracy fall off right as my barrel(s) were loosening themselves off the trunnion. Quality AR15s can definitely be more accurate than the BRN180. I've found my 16 inch (not early production) to be around the 1-1.5MOA with 62grain Winchester bthp. |
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FL, USA
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Posted: 4/23/2020 8:30:04 AM EDT
[#50]
Ive had good luck with mine so far.
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