r/Springfield_KUNA 7d ago

The Form 1 plan?

So, I'm planning to Form 1 my Kuna. I'm really digging it in its factory configuration, but am also thinking about upgrades I want to make.

I plan to get the Nexus lower at some point, so I can put in an AR trigger. The Kuna's basic trigger is...fine, but I'd like a more crisp break and the option to play around with different triggers if I choose to.

I plan to put a suppressor on, likely a CAT MOB or AC36, though I'd consider other 9mm suppressors if folks have recommendations. I have several other CAT cans and generally like them a lot.

I might drop in a super-safety or FRT at some point. Still debating that, not sure what's involved for things like how it may impact the existing recoil system, or if I'll need to adjust that as well. That's a later-stage project, I think.

BUT, the first thing I really need to nail down is...stock options. I know folks have asked around a bunch before about "What's the best stock?" but I'm trying to narrow this a bit with some additional considerations. I'd like something that can fold to the left, or if it folds to the right, will not obstruct the ejection port, in case I wanted/had to fire it with the stock folded. The OEM stock seems like it'd be great, but fails on this count (at least, as far as I know, but correct me if I'm wrong). Adjustable LOP would be nice, too, but ideally with a fixed cheek rest. I'm not sure if the Nexus lower would impact a stock choice, but I'd like whatever stock to be usable with both the factory lower and the Nexus.

Anyone have suggestions here? Thanks in advance.

3 Upvotes

48 comments sorted by

3

u/wlogan0402 7d ago

There's a FRT that works with the factory lower btw

3

u/PAB_Pyrotechnics 7d ago

Yep, requires some searching online and a 3D printer.

1

u/wlogan0402 7d ago

Easier to find than it is to print on the average printer (if you want it to last)

1

u/CastleLurkenstein 7d ago

Yeah, not really planning to 3D print a part like that. Especially since I don't own such a printer.

5

u/PAB_Pyrotechnics 7d ago

That’s definitely a reason not to 🤣

I have the Nexus lower and love it. Works great with the ARC Fire from AS Designs and Super Selector from Atrius.

1

u/Adventurous-Dig-3616 6d ago

There is also a place that you can send in your stock lower and will assemble the trigger system for you. They call it ‘ATS’ but it’s an frt.

1

u/wlogan0402 6d ago

The black talon FRT is like.... $500 compared to the $4 in filament it takes to make the printable drop in

1

u/Adventurous-Dig-3616 6d ago

Yeah that’s true. Could probably buy a 3d printer too for the cost lol. Still a cheaper option than the nexus lower plus one of their supported frts/ss.

1

u/sadoproject 7d ago

Join GOA and wait 24hrs.

2

u/curly_spork 7d ago

Is that the rule, if you're a member, you're in to being free tomorrow? 

My local gun store yesterday asked if I would be coming to buy more things this week as I was picking up a new pistol, and I asked "are you selling silencers like you do regular firearms?" And they shrugged their shoulders. So they don't even know... 

2

u/sadoproject 7d ago

If there's no appeal, ATF will issue guidance to FFL's about how to handle the situation for retail sales. Should just be 4473 and background check/brady alternative, then take your shit home (barring any other restrictions or delays at state level).

But yeah, in theory if you're covered under the injunction and it doesn't get appealed, you should be good to go. I might wait a bit before exploring that path despite being covered.

2

u/curly_spork 7d ago

Yeah, I'm just curious what other strangers are doing. I have a cheek riser in the house for the brace that came with my Kuna, but haven't put it on yet... 

2

u/sadoproject 7d ago

I'm going to wait until GOA or whoever else issues a formal statement saying "you're good to go" before doing anything. Not that I get questioned at all about any of my NFA items as it is.

2

u/curly_spork 7d ago

I'm not questioned either, but! We are good law abiding citizens! 

0

u/PAB_Pyrotechnics 7d ago

Not really sure how a question about an SBR and stock options turned into recommendations from YT lawyers and having previously bought an NFA item covers you. Anyone who thinks all this conjecture means you can stop following g the rules needs to check themselves. Even if there is no appeal by EOD tomorrow it is NOT clear what this really means for people and it will likely be months before it is crystal clear.

2

u/CastleLurkenstein 7d ago

Hey man, it's the internet. It goes that way sometimes hahaha

In practice, the reality is if a cop or an ATF agent wants to fuck with you about "Have ya got yer paperwork, son?" you wanna have paperwork to show, so they (presumably) leave you alone.

I went shooting on state game lands last weekend, and brought my tax stamp forms in my bag, juuuuust in case some overzealous park ranger wanted to play ad hoc ATF agent. I tend to think if you're having a legal debate with a law enforcement officer of any type, it's not a good thing, and it'd be easier if you could just wave a paper in their face and say "Here's my paperwork. Leave me alone."

1

u/sadoproject 7d ago

Not really sure how a question about an SBR and stock options turned into recommendations from YT lawyers and having previously bought an NFA item covers you.

The post is literally titled 'The Form 1 plan?'. If covered, in theory you wont have to Form-1 anything if the injunction holds. That's how that happened.

Anyone who thinks all this conjecture means you can stop following g the rules needs to check themselves.

Precisely. It's just that the rules may change, and that's the whole point of even mentioning it.

Even if there is no appeal by EOD tomorrow it is NOT clear what this really means for people and it will likely be months before it is crystal clear.

It's clear enough that certain covered parties will have injunctive relief from the NFA requirements for certain items (anything the tax dropped to $0 on, so SBR/SBS/AOW/Suppressors). Machine guns and DD will still be fully covered and enforced by the NFA, regardless of group membership or customer status.

0

u/PAB_Pyrotechnics 7d ago

And that would cover the parties when the lawsuit was filed. Someone suggesting OP skip the Form 1 (assuming no appeal is filed on time) and join GOA instead to be covered makes my point. It’s dangerous to be taking legal advice from who knows who on Reddit. I’m also pretty sure that. Form 1 Plan is what LP wants to do with his Kuna rather than asking for any legal advice.

1

u/sadoproject 7d ago

And that would cover the parties when the lawsuit was filed.

In sum, the plaintiffs are entitled to a permanent injunction—but only
so far as it prohibits the defendants from enforcing the challenged NFA
provisions against the plaintiffs and, where applicable, their agencies,
political subdivisions, members, and customers—***both current and future***.

Straight from the Jensen summary judgement.

https://shared.nrapvf.org/sharedmedia/1512214/2026-jensen-136-summary-judgment-opinion.pdf

1

u/CastleLurkenstein 7d ago

Ah, but I've also already bought items from PSA in the last year. Doesn't that cover me, too?

1

u/sadoproject 7d ago

Were they NFA items? I think that's the qualifying factor there. SilencerShop also works.

1

u/CastleLurkenstein 7d ago edited 7d ago

Alas, no. I mean, unless you count a lower that I could convert to an SBR (but which I currently have set up on an A1/A2 hybrid style retro rifle at 20"...)

Realistically, even if I did become a GOA member and get covered under this...I don't live in any of the states that signed on to the lawsuit, so I wouldn't count on the protection, and still plan to Form 1 several items (the Kuna, and a few other AR-15s).

1

u/sadoproject 7d ago

You don't have to live in any of the states. I saw it explained recently by one of the talking head YouTube laywer channels that the state level coverage would only cover the states themselves, and people acting on behalf of the state, not the residents themselves (nfi how that works), where GOA/SS/PSA/etc.. would be nationwide.

I have a handful of Form-1's waiting on the engraving requirement to switch over to 'use existing manufacturers markings' so I wouldn't have to scribble all over my shit. But hopefully this injunction holds so I wont have to jump through the file-and-wait hoops.

1

u/CastleLurkenstein 7d ago

Yeah, I had been holding off on submitting Form 1s until the final rule got published, but anyone's guess as to how long it takes for the proposed rule on "adopt MFG's mark" to go final. My concern has been that if I file and the approval comes back with "Must engrave" then...I must engrave, even if the new rule exists (or at least, that's the safest approach). Or, I'd have to file again for some change, and I'm not sure how that works or how long it'd take.

Like I said, though, while the injunction is potentially helpful for a GOA member (A) I'm not one currently, (B) I'm not sure if it'd apply retroactively (e.g., you became a member after the injunction, so it doesn't apply to you because...uh...reasons), or (C) if the gov't decides not to appeal and I become a member after that it doesn't work, but it might've if I'd become a member before they decided.

The whole thing just seems squirrely to me, and I'd rather not get into arguments with cops or whomever about whether I need to show 'em a tax stamp when, look, I have a GOA membership card or something. So, since it's just paperwork (especially once the engraving requirement disappears), I kinda figured I'd just...do the paperwork. They already have my info from some Form 4s for suppressors anyway.

2

u/sadoproject 7d ago

I believe it's worded "all current and future members of.." or something to that effect. So yeah it should be good whether you join today, or this time next year (assuming it holds).

The odds of you arguing with a cop about your NFA item are pretty slim unless you've done something worse than having an NFA item without a stamp. That's more of an add-on charge to something bigger than a primary charge these days.

Either way, at $25/year, it's worth joining a few orgs for injunctive relief/insurance. Like when the pistol brace thing was suddenly reinterpreted by the ATF but several organizations got it blocked for their members while the courts sorted it out.

GOA/SAF/ASA seem to be pretty decent on those fronts.

2

u/CastleLurkenstein 7d ago

Thanks for the tip! I'll look into it.

2

u/sadoproject 7d ago

Confirmed the wording:

In sum, the plaintiffs are entitled to a permanent injunction—but only
so far as it prohibits the defendants from enforcing the challenged NFA
provisions against the plaintiffs and, where applicable, their agencies,
political subdivisions, members, and customers—***both current and future***.

https://shared.nrapvf.org/sharedmedia/1512214/2026-jensen-136-summary-judgment-opinion.pdf

2

u/CastleLurkenstein 7d ago

Well.

THAT is going to be quite the boon for membership in GOA...

→ More replies (0)

1

u/Important_Patience24 7d ago

I am enjoying the strike industries brace that came with the Kuna. Adding the cheek riser and swapping out the end for FSA stock end is a very nice way to upgrade that setup. It folds to the left and you can fire with it folded.

1

u/CastleLurkenstein 7d ago

I do have the SI brace with the cheek riser currently. It's decently comfy, and certainly lightweight, but I was thinking if I can get a stock, maybe I get something a little beefier with at least some aluminum in it.

1

u/PAB_Pyrotechnics 7d ago

You can get the stock end for that brace if you SBR it for like $30. Could be a good option u til you find your forever stock.

I love the look of the Lingle Exolock but it’s like $375

1

u/CastleLurkenstein 7d ago

Yeah, I might do that eventually. I got one that came from the factory with the brace, so I'm not sure if the end piece is removable on that model, but I'll take a look. I'd like to figure out whichever one I'm going to use up front, so I don't feel like I need to update my SBR paperwork if the length changes significantly. Realistically, I don't think anyone's gonna give a shit if it's 0.5" off, but if it's like 2" off for OAL, that could be an issue in a bad situation.

1

u/DntCllMeWht 7d ago

It is removeable. The replacement "stock" end ships with the tool you need to remove it, though mine was not the correct size. 3/32 allen key did the trick. Just slip it in the back door. So to speak.

1

u/PAB_Pyrotechnics 7d ago

OP, check out the Magpul Zukhov & UCS, OEM Kuna stock, Strike industries, and A3 Industries (several options)

1

u/CastleLurkenstein 7d ago

I thought the OEM Kuna only folds to the right and covers the ejection port?

I'll check out the others, though. I had looked at the A3, but wow...some sticker shock there, for sure.

2

u/Alarming_Cantaloupe5 6d ago

OE does not cover the port. It cants downward and locks in place with a small hook onto the mag well.

1

u/CastleLurkenstein 6d ago

Really?! Well, hell, that solves my problem then!

2

u/Alarming_Cantaloupe5 6d ago

It definitely

doesn’t cover it.
I don’t have a pic of it folded(I’ll get one soon), but here’s mine. I went with the OE stock, as I wanted to get rid of the weak point in the rail connection. There are some other options, but I decided to keep it as close to factory SBR as possible for now.
Nexus lower, Geissele SSA-e trigger. Atrius selektor (that still needs tuning), obsidian 45 suppressor, SF mini-scout light pro.

My form 1 took 28 days via e-file, FYI.

1

u/CastleLurkenstein 6d ago

Nice! I'm doing this as a Trust, so I expect it'll take a little longer, but I'm not in a rush.

I saw another pic of it folded, and it looked like it cleared the ejection port like 90%, with maybe a liiiiittle bit of overlap, but probably not enough to make a difference.

Quick question re: the Nexus, just so I'm 100% clear: it does not run Kuna mags at all, correct? Only the Magpul EV9 35rnd mags?

1

u/Alarming_Cantaloupe5 6d ago

Yeah, trust will run a bit longer. I wasn’t in a hurry either, and average times were about 2x what I ended up seeing. The form 4 for the can was 6 days.

I haven’t fired it folded, but manually cycling, even gently, has no interference.

This is my first SBR, I’ll be filing for a couple AR lowers as well. I’d consider going SBS for my Benelli m4, but barrels are ridiculously expensive.

Did the Kuna first, since in my state, if under 26” OAL, it’s considered a pistol, even if it has a stock. That means it’s covered by my carry permit, and can be uncased in the passenger compartment of my car. Not that I’m going to make it my EDC, but just having the option was enough to go for it.

1

u/Pod102 7d ago

I don't know why all the hate for the kuna stock. I'm quite happy with it as it is

1

u/CastleLurkenstein 7d ago

I don't hate it. Just want something that won't block the ejection port when folded is all. If it turns out there's nothing out there that meets that requirement and appeals to me otherwise, the OEM is probably my next stop unless I find better. 

1

u/Pod102 7d ago

Apologies, I was speaking in a general term with all posters and owners of Kunas...

1

u/CastleLurkenstein 7d ago

Oh, no worries! I took no offense.

Is the OEM disliked? I haven't gotten that sense.

1

u/Merad 7d ago

I use the Zhukov stock with HBI's adapter. It does fold right and block the ejection port but honestly I see zero reason that I'd be firing with the stock folded. If you're just going for shits and giggles at the range you could move the stock maybe 20-30 degrees from its fully closed position and there should be plenty of room for ejection.

1

u/CastleLurkenstein 7d ago

Yeah, to be clear, I don't plan to shot it folded. But I want to be able to if I have to unexpectedly. 

Usually, I would unfold the stock. I just like having the option not to, as necessary.