Warning

 

Close

Confirm Action

Are you sure you wish to do this?

Confirm Cancel
BCM
User Panel

Page AR-15 » Rimfire and Pistol Calibers
AR Sponsor: bravocompany
Arrow Left Previous Page
Page / 2
Posted: 4/17/2023 11:37:38 AM EDT
[Last Edit: NorthPolar]
Gotta admit I’m intrigued. Might end up getting one once I SBR a BRN or EPC folder lower.

https://www.brownells.com/gun-parts/rifle-parts/rifle-receivers-parts/brn-9-upper-receiver-9mm/

The Dedicated Upper That Pistol-Caliber AR Fans Have Been Yearning For!

At last we have a BRN® upper for pistol-caliber AR fans! The BRN-9 is a complete, dedicated upper receiver assembly chambered in 9mm Luger (9x19mm, 9mm Parabellum). In common with our BRN-180® series, the BRN-9's blowback operating system is entirely self-contained. It does not use the AR-15 recoil buffer system, so it does not need a receiver extension, aka "buffer tube." It readily functions with a folding stock as an SBR (all NFA rules apply), and as a pistol it doesn't need the stubby buffer tube common to AR pistols.

How does it work? The BRN-9's bolt is connected to a weight above it that reciprocates inside the receiver and works with the internal recoil springs to provide enough mass to enable simple, reliable blowback operation. This operating system can run suppressed or unsuppressed without changing the springs.

The BRN-9 upper snaps onto a standard mil-spec AR-15 or BRN-180 lower receiver fitted with one of many 9mm magwell adapters currently available. It's also a perfect match for a purpose-built 9mm lower, such as the Aero Precision EPC-9. It works with lowers set up to use 9mm Glock®, Colt SMG, CZ Scorpion, Heckler & Koch MP5, and SIG Sauer P320 magazines, as well as Mean Arms EndoMags. Plus, it works with lower receivers and magwell adapters that have a last-round-bolt-open mechanism.

Conveniently positioned up front, the BRN-9's charging handle can be swapped easily between the right- and left-hand sides of the receiver. It's a non-reciprocating charging handle, so no there's risk of it striking your support hand while firing - important on such a compact upper!

The short handguard and receiver itself are machined from a solid billet of 6061 T6 aluminum, so the BRN-9 upper has a sturdy, "all of a piece" feel to it. Up top there's an uninterrupted full-length M1913 Picatinny rail, so you can mount a red dot sight exactly where you need it.

The Nitride-coated 5½" barrel of extra-strong 4150 steel is ideal for 9mm ballistics, and the muzzle has ½"-28 tpi threads to accept a muzzle device or sound suppressor. A handy thread protector is included, to give a finished look when you're going deviceless. CAUTION: The BRN-9 requires a 9mm flash hider or suppressor, NOT a standard .223/5.56 AR-15 muzzle device.

BRN-9 features at a glance:

Machined from- billet 6061 T6 aluminum, black hardcoat anodized
Nitrided 4140 steel bolt
Lightweight Nitrided 4150 steel barrel with 1-10" rifling & ½-28 tpi muzzle threads
Continuous M1913 Picatinny top rail
M-LOK® slots on bottom & sides of handguard
Compatible with 9mm Glock®, Colt 32-rd SMG, CZ Scorpion, Heckler & Koch MP5, Mean Arms EndoMags & SIG Sauer P320 magazines
Self-contained blowback operating system - NO buffer tube needed!
Non-reciprocating steel charging handle
Compatible with standard "mil-spec" AR-15 or BRN-180 lower receivers
Works with last-round-bolt-hold-open lower receivers
Preserves function of bolt catch
Tapered multi material 4-piece trunnion system to maintain mechanical accuracy & longevity
Rear recoil buffer is 3D-printed from flexible material optimized to absorb recoil impulse
Over-buffer-tower design maximizes rail space
BRN-style brass deflector
Easy toolless takedown



Link Posted: 4/17/2023 6:02:09 PM EDT
[#1]
Very intriguing but I wonder why the price is so low. I also wonder if the feed cone can be opened up to feed JHPs - or if it comes that way from the factory.
Link Posted: 4/17/2023 6:18:21 PM EDT
[#2]
I applaud their effort, but a big MEH from me.
Link Posted: 4/17/2023 6:44:23 PM EDT
[Last Edit: TREETOP] [#3]
Link Posted: 4/17/2023 7:17:21 PM EDT
[#4]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By InvertedDeparture:
Very intriguing but I wonder why the price is so low. I also wonder if the feed cone can be opened up to feed JHPs - or if it comes that way from the factory.
View Quote


It has a generous feed cone with multiple radii developed after a few iterations, feeds JHPs fine.
Link Posted: 4/17/2023 7:17:51 PM EDT
[#5]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By TREETOP:
The pics don't show the bolt removed from the upper, but the pic of it installed doesn't look like it's machined to trip an auto sear. I noticed the rear bottom of the upper receiver itself isn't machined for clearance of an M16 auto sear. Can you confirm whether it will work in full auto with an M16 lower?
[edit:] BRN upper, nevermind. Just realized what I was looking at. I do like this.
View Quote


A trip insert for this and the MAT-9 is in the works.
Link Posted: 4/17/2023 7:26:12 PM EDT
[#6]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Axlnut:


It has a generous feed cone with multiple radii developed after a few iterations, feeds JHPs fine.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Axlnut:
Originally Posted By InvertedDeparture:
Very intriguing but I wonder why the price is so low. I also wonder if the feed cone can be opened up to feed JHPs - or if it comes that way from the factory.


It has a generous feed cone with multiple radii developed after a few iterations, feeds JHPs fine.

That’s great news!

I want to see one field stripped to see the mechanism at work; I am very interested now. I hope it works on my KE-9 Glock mag lower; that and a folding stock (it’s an SBR) would be a very compact package.
Link Posted: 4/17/2023 7:29:24 PM EDT
[#7]
Would have rather it been a doe 9mm
Link Posted: 4/18/2023 7:05:08 PM EDT
[#8]
Turns out the BRN-9 is a Matador Arms product, with some improvements from the Montgo-9. There is now a brass deflector, and there is no screw holding the action together.

A review of the Montgo-9 (what a name!) is posted below. A few hundred rounds but it appears to run well.

Link Posted: 4/18/2023 8:35:18 PM EDT
[Last Edit: Axlnut] [#9]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By InvertedDeparture:
Turns out the BRN-9 is a Matador Arms product, with some improvements from the Montgo-9. There is now a brass deflector, and there is no screw holding the action together.

A review of the Montgo-9 (what a name!) is posted below. A few hundred rounds but it appears to run well.

https://www.youtube.com/watch?v=zkyrF3A2fYA
View Quote


MANY improvements over the Montgo.

The BRN is based on the MAT-9, which originally was intended as the Montgo Gen2 but evolved way past that.

The MAT/BRN only share two small parts with the very latest version of the Montgo, and both have actually been relocated/refined vs the Montgo (extractor assembly and firing pin assembly)
Link Posted: 4/18/2023 9:04:47 PM EDT
[Last Edit: tawoodii] [#10]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By s4s4u:
I applaud their effort, but a big MEH from me.
View Quote

Agreed.. it appears to be basic blow back.
Link Posted: 4/18/2023 9:13:02 PM EDT
[#11]
Link Posted: 4/18/2023 9:48:44 PM EDT
[#12]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By s4s4u:
I applaud their effort, but a big MEH from me.
View Quote


That. It’s neat but hard no.  Blowback should be dead. We’re better than this.
Link Posted: 4/18/2023 9:54:19 PM EDT
[Last Edit: NorthPolar] [#13]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By 45-Seventy:


That. It’s neat but hard no.  Blowback should be dead. We’re better than this.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By 45-Seventy:
Originally Posted By s4s4u:
I applaud their effort, but a big MEH from me.


That. It’s neat but hard no.  Blowback should be dead. We’re better than this.


I’d imagine if someone could make a reliable roller lock or similar universal upper for $500, it would be unobtainable because everyone would be want one. More processes means more machine time, which means more cost. Blowback is just weight and spring. Way less complex to machine, and for 95% of people it’ll never make a difference as they don’t run a can or shoot anything higher end.

Brownells is going to sell the crap out of these. I’m in for one after I source an EPC lower.

Edit: already sold out on the first run.

Also this is Caleb (Brownells) build. Snagged from their FB feed.

Attachment Attached File
Link Posted: 4/18/2023 9:56:37 PM EDT
[#14]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By s4s4u:
I applaud their effort, but a big MEH from me.
View Quote

Agreed. A lot of effort for a blowback 9mm, and the barrel length is just too short. Would rather have something in the 10 inch range for a shorty, and 16.
Link Posted: 4/18/2023 10:23:27 PM EDT
[#15]
I wonder what CZ Scorpion mag lower they tested? The NFA S9 lower is too wide and the PSA ARV is proprietary as hell.
Link Posted: 4/19/2023 12:54:23 AM EDT
[Last Edit: Axlnut] [#16]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By tawoodii:
I wonder what CZ Scorpion mag lower they tested? The NFA S9 lower is too wide and the PSA ARV is proprietary as hell.
View Quote


We've tested the NFA S-9, not sure what you mean about too wide. The upper is cut to accommodate Evo mags, works perfectly. Quite a few pictures and videos of the combo (MAT9 version) being shot on social media, I have a few thousand through the combo.  .

ARV lower is on the way to test, the only thing that may be too proprietary about it is the height the mags sit. Pin locations, trigger location, mag width etc will all fit as they are standard dimension/spec.
Link Posted: 4/19/2023 3:53:29 AM EDT
[#17]
Link Posted: 4/19/2023 8:22:05 AM EDT
[#18]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Axlnut:


We've tested the NFA S-9, not sure what you mean about too wide. The upper is cut to accommodate Evo mags, works perfectly. Quite a few pictures and videos of the combo (MAT9 version) being shot on social media, I have a few thousand through the combo.  .

ARV lower is on the way to test, the only thing that may be too proprietary about it is the height the mags sit. Pin locations, trigger location, mag width etc will all fit as they are standard dimension/spec.
View Quote

Hey Axlnut! First allow me to provide thanks for posting a reply to my question.

When I say the S-9 is too wide I mean It cannot be mated to a standard upper without large amounts of overhang from the lower, and the standard upper cannot even accept the scorpion mags. It sounds like you guys sorted that out though.

I had never heard of Matador arms and so after reading your reply I researched and found the photos of your upper mated to the S-9 lower. It looks damn good man!

As for the ARV I'm not sure if you've seen that lower but I bought one and found that it would not work with any other bolt(FM Blowback, CMMG blow back, CMMG RDB) except the one that came with it, it has a large tower of sorts that houses the BHO and their proprietary bolt has been machined for clearance of that tower. Ultimately, I'm glad to see you guys innovating and making new uppers, I hope you sell a ton of them. Since you're working in partnership with Brownells maybe you can work in the Short Stroke Gas Piston design and make a competitor to Sig's MPX.

Thanks again for the reply.
Link Posted: 4/19/2023 8:48:35 AM EDT
[#19]
@Axlnut

Sounds good on the feed cone.  About time more manufacturers started improving their design.  Good on Brownells!  

Do you know the weight of the reciprocating mass (the bolt)?
Link Posted: 4/19/2023 1:00:00 PM EDT
[#20]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Droppoint:
@Axlnut

Sounds good on the feed cone.  About time more manufacturers started improving their design.  Good on Brownells!  

Do you know the weight of the reciprocating mass (the bolt)?
View Quote


20.4oz
Link Posted: 4/19/2023 1:04:03 PM EDT
[#21]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By tawoodii:

As for the ARV I'm not sure if you've seen that lower but I bought one and found that it would not work with any other bolt(FM Blowback, CMMG blow back, CMMG RDB) except the one that came with it, it has a large tower of sorts that houses the BHO and their proprietary bolt has been machined for clearance of that tower. Ultimately, I'm glad to see you guys innovating and making new uppers, I hope you sell a ton of them.

Since you're working in partnership with Brownells maybe you can work in the Short Stroke Gas Piston design and make a competitor to Sig's MPX.

Thanks again for the reply.
View Quote


To the AR-V, our bolt is substantially different than a normal AR bolt, and the lower profile isn't far off an AR-V. I really can't wait for that lower to arrive because I still believe it to be 50/50 shot, time will tell.

There are many things in the pipeline, but we've all heard those asking for something beyond blowback. I like a simple, low price point blowback upper for what they are, but we are listening
Link Posted: 4/19/2023 1:09:26 PM EDT
[Last Edit: Droppoint] [#22]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Axlnut:


20.4oz
View Quote

Thank you!  Good to hear.  Just a little lighter compared to typical 9mm mass, but certainly not unreasonable.  Definitely not crazy light like some other bufferless uppers (13.5oz.!).
Link Posted: 4/29/2023 10:43:25 AM EDT
[Last Edit: mikeuniform] [#23]
The "plastic" parts.  I suspect a few more parts besides the charging block is going to be made from another material.

" />

" />

Trial fit.  

" />
Link Posted: 4/29/2023 12:59:48 PM EDT
[#24]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By mikeuniform:
The "plastic" parts.  I suspect a few more parts besides the charging block is going to be made from another material.

http://i.imgur.com/TTadtk4.jpg" target="_blank">http://i.imgur.com/TTadtk4.jpg

http://i.imgur.com/7BOsmRy.jpg" target="_blank">http://i.imgur.com/7BOsmRy.jpg
View Quote



Those look like they would be simple to make in aluminum. So some aftermarket company could probably make them and sell a bunch.
Link Posted: 4/29/2023 1:05:20 PM EDT
[#25]
Those look cheap 3d printed matrrial. They really dhould not cheap out. Should be easy and inexpensive if doing in at least alloy.

Reminds me of BRN180 receiver end cap. Its dkso plastic sbd always makes me wonder how long it will last.
Link Posted: 4/29/2023 2:42:05 PM EDT
[Last Edit: mikeuniform] [#26]
Already got mail from Brownells about the charging handle slide.  Charging it feels stiffer than a MAC 90 or L1A1.
Those are the only side chargers I've had.

Plus, I have no idea how they made the handle a interference fit into that material and hoped it won't wallow out.

"Thank you for your recent purchase from Brownells of the BRN-9 Upper Receiver.  Several customers have reported instances of the Charging Handle Slide breaking during operation (item #14, M9-10-G2 in the Instruction Schematic).

We are sending you an improved part, both in the material and design, to replace the original Charging Handle Slide.  You should receive this in the mail shortly.

Installation is straightforward, just follow the disassembly instructions provided with the BRN-9, simply replace with the new part during Step 6 of Disassembly.

We are sorry for the inconvenience and hope you enjoy using the BRN-9 Upper Receiver. Please reach out to us at Brownells if you have any questions or concerns."

Thank you,

Amanda
Link Posted: 4/29/2023 2:56:33 PM EDT
[#27]
Thank the skies above they didn’t put the stupid 180 charging handle on it. Want!
Link Posted: 4/30/2023 3:27:46 PM EDT
[Last Edit: Axlnut] [#28]
The rear takedown piece is polymer, yes, except the locking block that engages the receiver, -

Cheap, no.

Could it be made from aluminum? Absolutely not. That part would be literally impossible to machine (or even with some modification to make it machinable, extremely cost prohibitive), and we have never broken one.

We also NEVER broke a charging handle slide, we had a batch come in with the wrong material. As soon as the issue was reported we got to work immediately with Brownell's and didn't just get a replacement out in the proper material, but made it stronger as well.

There's absolutely no reason for the charging handle slide to be made from aluminum, it would be worse in every way.
Link Posted: 4/30/2023 3:31:34 PM EDT
[#29]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By mikeuniform:


Plus, I have no idea how they made the handle a interference fit into that material and hoped it won't wallow out.


Amanda
View Quote



It wasn't originally and isn't now, it's intended to be a nice, loose slip fit, and your new one will be. The hole shrinkage was a byproduct of the material issue.
Link Posted: 5/1/2023 11:31:42 AM EDT
[Last Edit: mikeuniform] [#30]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Axlnut:



It wasn't originally and isn't now, it's intended to be a nice, loose slip fit, and your new one will be. The hole shrinkage was a byproduct of the material issue.
View Quote


I had to lightly tap out the charging handle with a punch.  It wasn't moving yanking on it.
So, do I have the old block since it wasn't coming out by hand?
Link Posted: 5/1/2023 11:49:56 AM EDT
[Last Edit: Axlnut] [#31]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By mikeuniform:


I had to lightly tap out the charging handle with a punch.  It wasn't moving yanking on it.
So, do I have the old block since it wasn't coming out by hand?
View Quote


Yessir. If it's rough looking like the photos and that hard to remove, absolutely. Brownells should be sending you a new one, I do believe the ran that as a blanket replacement program for everyone (unless you bought in store).

If for some reason they don't, shoot me a PM and I'll get you taken care of.
Link Posted: 5/1/2023 12:05:00 PM EDT
[#32]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Axlnut:


Yessir. If it's rough looking like the photos and that hard to remove, absolutely. Brownells should be sending you a new one, I do believe the ray that as a blanket replacement program for everyone (unless you bought in store).

If for some reason they don't, shoot me a PM and I'll get you taken care of.
View Quote


Thank you sir!!  That's outstanding.
Link Posted: 5/6/2023 9:54:11 PM EDT
[#33]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Axlnut:


We've tested the NFA S-9, not sure what you mean about too wide. The upper is cut to accommodate Evo mags, works perfectly. Quite a few pictures and videos of the combo (MAT9 version) being shot on social media, I have a few thousand through the combo.  .

ARV lower is on the way to test, the only thing that may be too proprietary about it is the height the mags sit. Pin locations, trigger location, mag width etc will all fit as they are standard dimension/spec.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Axlnut:
Originally Posted By tawoodii:
I wonder what CZ Scorpion mag lower they tested? The NFA S9 lower is too wide and the PSA ARV is proprietary as hell.


We've tested the NFA S-9, not sure what you mean about too wide. The upper is cut to accommodate Evo mags, works perfectly. Quite a few pictures and videos of the combo (MAT9 version) being shot on social media, I have a few thousand through the combo.  .

ARV lower is on the way to test, the only thing that may be too proprietary about it is the height the mags sit. Pin locations, trigger location, mag width etc will all fit as they are standard dimension/spec.


The S9 has been discontinued.  Are you aware of any other Scorpion mag offerings coming out?
Link Posted: 5/7/2023 11:01:23 AM EDT
[#34]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Axlnut:


Yessir. If it's rough looking like the photos and that hard to remove, absolutely. Brownells should be sending you a new one, I do believe the ran that as a blanket replacement program for everyone (unless you bought in store).

If for some reason they don't, shoot me a PM and I'll get you taken care of.
View Quote


Got the new block yesterday, it's all solid construction.
There's .050 movement of the charging handle measured at the very end so it's loose.  
I just need to deal with it and go shoot.  
Link Posted: 5/7/2023 9:05:33 PM EDT
[#35]
Anybody tried one of these uppers on a PSA Gen 4 9mm Glock Lower?


PSA GEN4 8" 9MM 1/10 GX M-LOK MOE EPT SHOCKWAVE PISTOL
Link Posted: 5/8/2023 5:37:56 PM EDT
[#36]
@Axlnut

How does it run suppressed, and what cans did you use for that evaluation?
Link Posted: 5/9/2023 2:43:18 PM EDT
[#37]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By InvertedDeparture:
@Axlnut

How does it run suppressed, and what cans did you use for that evaluation?
View Quote


Well, but most of my suppressed shooting was done with the MAT9 vs the BRN, so 2" more barrel length for the majority of my experience.

Omega 9k, Hybrid46, both Gens of Ospreys, YHM.

There is a ton of video on Matador's IG of us at CANCON last weekend, putting about 4500 total suppressed through 3 uppers over the course of the weekend, including the mini comp runs, and both fast shooters and beginners to compare.

Gives you a good take on the recoil impulse.
Link Posted: 5/13/2023 4:47:17 PM EDT
[Last Edit: DooMsDaYRangeR] [#38]
What’s the best way to attach a muzzle device with a crush washer to the BRN-9? I’m guessing brownells action block to hold it in a vise would be best?
Link Posted: 5/25/2023 2:34:45 AM EDT
[Last Edit: NorthPolar] [#39]
@Axlnut considering Aero's weird spring in the uppers to make their bolt hold open work, does the BHO work with an EPC lower and this upper?  I'm agonizing between saying screw it and doing a 16" or just doing a SBR with folding wire stock, but don't want to lose BHO functionality.  Thanks in advance.
Link Posted: 5/26/2023 10:13:19 PM EDT
[Last Edit: tawoodii] [#40]
@Axlnut

Did you ever get your AR-V lower in. Are the two compatible?


Thanks!
Link Posted: 5/27/2023 3:58:22 PM EDT
[#41]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By DooMsDaYRangeR:
What’s the best way to attach a muzzle device with a crush washer to the BRN-9? I’m guessing brownells action block to hold it in a vise would be best?
View Quote


Soft/rubber jaws from the side, right around the flats by the rear barrel trunnion (above the screws).
Link Posted: 5/27/2023 3:59:57 PM EDT
[#42]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By NorthPolar:
@Axlnut considering Aero's weird spring in the uppers to make their bolt hold open work, does the BHO work with an EPC lower and this upper?  I'm agonizing between saying screw it and doing a 16" or just doing a SBR with folding wire stock, but don't want to lose BHO functionality.  Thanks in advance.
View Quote


No sir, the EPC combo has the LRBHO contained entirely within the upper, for the time being you'd need a lower with the LRBHO linkage.
Link Posted: 5/27/2023 4:03:59 PM EDT
[#43]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By tawoodii:
@Axlnut

Did you ever get your AR-V lower in. Are the two compatible?


Thanks!
View Quote


I did, and they are not, out of the box.

It took quite a few bolt mods to get it running (though no mods to the lower) and I'm not quite there yet.

I have been documenting the process though.Attachment Attached File
Link Posted: 5/27/2023 4:49:54 PM EDT
[#44]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Axlnut:


No sir, the EPC combo has the LRBHO contained entirely within the upper, for the time being you'd need a lower with the LRBHO linkage.
View Quote


Nuts. That’s what I thought but wanted to confirm. Thank you
Link Posted: 5/27/2023 5:54:55 PM EDT
[#45]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Axlnut:


I did, and they are not, out of the box.

It took quite a few bolt mods to get it running (though no mods to the lower) and I'm not quite there yet.

I have been documenting the process though.https://www.ar15.com/media/mediaFiles/176220/-wg5ews_jpg-2830893.JPG
View Quote


Wow! That weapon looks great! I'm glad you're working through it and not just tossing that lower aside. When you say you're documenting the process are you posting updates somewhere else or just documenting it for proprietary/business related reasons?

Thanks!
Link Posted: 5/27/2023 8:55:58 PM EDT
[#46]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By tawoodii:


Wow! That weapon looks great! I'm glad you're working through it and not just tossing that lower aside. When you say you're documenting the process are you posting updates somewhere else or just documenting it for proprietary/business related reasons?

Thanks!
View Quote


When it works, I'm going to post it.

Basically you need to cut a bit of mag clearance, both for the feed lips, and the feed lug needs raised quite a bit. I'd get a few rounds but cycling slow enough to have the occasional FTE that I think was the feed lug dragging on the next round.

So I cut it as high as the AR-V bolt, but I did the whole thing. The ARV bolt has a step in the feed lug where it get's low enough after the mag to properly interact with the hammer. I ended up with a "functional" gun with hammer follow.

I'm either going to weld that one up and re-cut or just cut a new bolt and nail it down, then I'll post the full process and likely a guide drawing for the bolt mods here and on Reddit.  I'm also looking to see if one of the known-for-9mm-bolt-mod shops that I know and work with would be willing to offer it as a service (we're too wrapped up in production).

The upper on the ARV is so so sweet I have to make it work :-)
Link Posted: 5/28/2023 3:44:52 PM EDT
[#47]
I cannot wait to read about it! Thanks for keeping us up to date!
Link Posted: 5/28/2023 4:16:30 PM EDT
[#48]
Wonder if Brownells will do a dedicated lower for it.
Link Posted: 5/29/2023 7:06:05 AM EDT
[#49]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By ALASKANFIRE:
Wonder if Brownells will do a dedicated lower for it.
View Quote


If I was a betting man...
Link Posted: 5/29/2023 4:46:14 PM EDT
[#50]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Axlnut:


I did, and they are not, out of the box.

It took quite a few bolt mods to get it running (though no mods to the lower) and I'm not quite there yet.

I have been documenting the process though.https://www.ar15.com/media/mediaFiles/176220/-wg5ews_jpg-2830893.JPG
View Quote

Don’t think we didn’t spot that charging handle. I can see the appeal for something that folds flat; does it have a detent to stay “deployed” or is it spring loaded to fold flat?
Arrow Left Previous Page
Page / 2
Page AR-15 » Rimfire and Pistol Calibers
AR Sponsor: bravocompany
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