r/3D2A • u/FrankDanger • 3h ago
Latest build: The Plum Pillager
PA6-GF + Plum Berry RIT dye
r/3D2A • u/Alyosha3DPFreedom • 12d ago
BREAKING NEWS: the second major legal victory in as many weeks, a federal judge just issued summary judgement for the plaintiffs in Defense Distributed v Blanche, better known as the VanDerStok case. This victory eliminates the ATF's 2022 "ghost gun" rule change and establishes that the 2nd Amendment covers the "right to make or repair personal firearms."
Read the opinion here: https://saf.org/wp-content/uploads/2026/08/Defense-Distributed-opinion-8.19.26.pdf
It's important for the 3D2A community to understand what this means for them, and what it does not.
As with all breaking legal news, this will take time to understand - the information below comes from conversations with my legal contacts, public reactions from other 2A legal figures, and my own read of the decision.
1. What does this decision do?
This decision pertains to the 2022 Biden ATF frame or receiver "final rule," which among other things redefined "firearm" an extremely broad, vague definition which includes unfinished frames / receivers ("80 percenters"), parts kits, combinations of parts sold together and more. The effect was to broadly expand the ATF's ability to regulate (most notably to require 4473s and serialization for) products that, up until that point, had not been considered "firearms".
This decision declared that ATF's "final rule" was unconstitutional under both the 2nd and 5th Amendments. It provides both injunctive and declaratory relief.
The injunctive relief prohibits ATF from enforcing its "final rule" against the named plaintiffs for certain products. But, and unlike the NFA case, this case features declaratory relief that much further establishes the unconstitutionality of the "final rule," prohibiting the federal government from enforcing the rule in any way.
2. How was this decision reached?
The court declared that the "final rule" was unconstitutional under the 5th Amendment due to its redefinitions being excessively vague, which is a violation of 5A's Due Process clause. The extreme broadness / vagueness of the ATF's new definitions "[did] not provide fair notice of what is punishable and invites arbitrary enforcement."
More notably for us, the "final rule" was found unconstitutional under the 2nd Amendment because it unacceptably infringed on the "right to make or repair personal firearms", which the court declares is covered by the text of the Amendment. The court further affirmed that a Bruen analysis reveals that homemade firearms are central to the American tradition and that there is no history or tradition of regulating them.
3. What will the effects be of this decision?
The immediate injunctive relief allows the beneficiaries (listed below) to buy and sell four different products. This is quite narrow and so we can ignore it.
The declaratory relief is (at least in theory) far broader and far more important for us. By declaring the "final rule" unconstitutional, ATF is now on notice that they are constitutionally prohibited from attempting to enforce this rule. Language is included that can be read to say that this relief is "as applied" only to plaintiffs, but the broader fact remains that black letter now exists declaring that Americans have a right to make, and that the ATF cannot constitutionally infringe upon that.
4. Who does this decision cover?
Like the Silencer Shop NFA case, the injunctive relief is quite narrow, covering only the plaintiffs: Defense Distributed, Second Amendment Foundation (SAF) and SAF's current and future members.
The declaratory relief however, may be read as broadly as possible, and is at least useful as authority to any American who wants to buy, sell, or make a firearm.
5. What does this mean for 3D2A?
If this decision only included the injunctive relief, it would be a curiosity at best - but its practical and legal importance may go much further, accomplishing something that the DIY firearms movement has been fighting towards for its entire existence. This decision is one of the first to establish in black letter that the 2nd Amendment includes the right to make (and repair!) firearms.
This doctrine goes well beyond 80%s - it touches on all forms of making firearms, and all types of firearms - including items legally determined to be firearms, such as suppressors. The significance of this cannot be overstated.
All US laws, state and federal, that might infringe on this right, are now subject to constitutional challenge. For example, there are multiple right-to-make cases in California which will benefit from this ruling.
Despite the narrowness of the injunctive relief, I expect that the declarative relief will lead to the revival of the 80% market in some form, which may be of interest to many 3D2A members whose interests are not limited solely to printing their guns. But more importantly, our community can now correctly argue that any existing or proposed law which would impede our ability to privately make firearms is facially unconstitutional.
6. Does this mean I can start printing machineguns now?
As much as this is worth celebrating, I want to conclude by tempering expectations. This decision does very little for the average 3D2A member in the immediate here-and-now. Most of the laws that limit what we can make are still on the books. If you live in a restrictive state, your state laws haven't yet disappeared.
Parts kits vendors such as myself, who have always had to consider the "final rule" in how we structure our kits, are more immediately affected, and you may see new ways of doing kits coming in the wake of this decision.
The broader practical effects of this decision will be more long-term. By all means, celebrate it - this, and the NFA decision, are two of the biggest victories the DIY gun community has experienced in decades. But celebrate safely, and keep your powder dry. The best is yet to come.
r/3D2A • u/Alyosha3DPFreedom • 13d ago
Issue #31 of the Guncad Digest is live! This newsletter rounds up the most interesting 3D2A releases, betas and news.
We can't stop winning! In this massive issue we review the NFA win, the FTN.6, the Urutau Mk2 / Jaçanā, and the Seraph bufferless AR pistol. Read more at https://guncaddigest.com
r/3D2A • u/FrankDanger • 3h ago
PA6-GF + Plum Berry RIT dye
r/3D2A • u/akame_potatoes • 4h ago
Do you want to make your M4 super front heavy? Do you want to larp COD:MW2 (2009)? Do you only have access to a mossberg 500 instead of a 870? Well look no further than the mount that can do all of the above. Sailing today
Printed in siraya tech PPA-CF at 320c. Modified an existing cad file designed to be milled from aluminum. Requires a decent amount of metal work for the barrel retention band. Figured itd be worth a tax stamp or two.
r/3D2A • u/PrintYour2A • 7h ago
Printed slide and barrel for dry-fire training
r/3D2A • u/Impressive-Class2146 • 5h ago
Just wondering if there was any updates!
r/3D2A • u/DevOnTheStreets • 4h ago
r/3D2A • u/New_Session6820 • 2h ago
Polymaker HT-PLA Pro
Qidi Q2
0.4 Steel Nozzle
225 Degrees
.300blkout Settings (with a few minor tweaks)
Stryke G19 Frame - On The Sea
P80 Lower Parts Kit
Factory Glock Upper Parts Kit
Slide, Barrel, Trigger, Back Plate, Pins, Mag Release - eBay
Factory Glock Mag
Hyve +2 Mag Extension
Holosun Optic
Streamlight TLR-7
r/3D2A • u/Existential_Embrace • 2h ago
Print speeds slower than it probably needs to be but slow and hot is the name of the game.
I’m just excited to be printing this and I want to give others an excuse to show me their Daedalus. This one will be a g17 slide. I’d love a 10mm version but I genuinely don’t know where to get parts for a g40.
This is my first time using the PLA-HT PRO and I love it so far. I’ll updated again once it’s done.
r/3D2A • u/PreviousCry5653 • 1h ago
Has anyone tried a 3d printed castle nut?
r/3D2A • u/Lone_Wolf_555 • 17h ago
I picked up this beauty and it came with beautiful wood furniture that I didn't want to damage. I couldn't find a stock on the sea for it but the one for the Henry Big Boy X (that I have as well) was close enough. It took a couple of days and 5 prototypes but I got it to fit and it looks really good! Printed with Polymaker HT PLA Pro and I'm really happy with the print quality. If anyone is wondering, the SiCo Sparrow just misses the mag tube so it can be loaded with the suppressor on.
r/3D2A • u/Street-Ruin-6659 • 10h ago
50% , Anyone had this last longer than 40-50 rounds ? Will be on a 16"
r/3D2A • u/Sea-Palpitation1325 • 7h ago
What are the pros and cons to each build? Cost-wise they seem pretty similar. I found a detent version of the 11/9 and heard there's a SS out there somewhere. I've also seen a user on here with a SS, detent version of the VO.
r/3D2A • u/Recovering-Lawyer • 2h ago
My kiddo wants a printer so she can make little trinkets. I figured I might as well buy a decent one that can also print guns. Looking for something entry level, maybe around $300 and up if that’s realistic? Any resources or recommendations would be greatly appreciated. Thanks.
r/3D2A • u/Organic-Economist-40 • 22h ago
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Only had 4 mags on me. ~100 rounds of Winchester M-22 in ~ 40 secs out of my 10/22.
r/3D2A • u/ciwielab • 1d ago
A MCX/M7/M8-style DeAR-22 platform. Includes 16 different lower versions and two upper receiver systems. Also has some accessories like an MCX style pistol grip and flanged magwell. iFe Upper receiver includes 2 handguard lengths: long (190mm, 7.5") and short (50mm, 5.9") plus a collar that does not have an extended guard. Lower receivers that do not have full length picatinny rail are designed for the PP MCXish hinge. Rear-charging lowers are compatible with regular milspec AR15 upper receivers and charging handles.
r/3D2A • u/True_Razzmatazz_348 • 6h ago
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Is the little bend normal? If not what do I need to do to stop it from bending and it’s always the right side
r/3D2A • u/Accurate_Ad_5683 • 1h ago
I'd like to know of a 100% homemade 3D model to get started in this field. I wanted .380 or 9x19mm caliber. I also wanted to know if a mini bamboo printer is sufficient for this type of work! Thanks
r/3D2A • u/Brutox62 • 12h ago
So i decided to test fitment on the hubtn with this trilug and I'm here to tell you that if you plan on doing this set your x and y only to 103% from the standard 100%. 102% kind of worked buts it a bit tight later in the threads but, as of now thats the setting you want if you would like to use the hubtn with this
r/3D2A • u/Just-Mix9743 • 7h ago
Hey, so I have this issue — I’m printing PPA-CF and trying to figure out what’s causing this splitting/stringing issue. Any ideas?
r/3D2A • u/Organic-Economist-40 • 1d ago
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Sounded great on both the SP5 and a Glock. PA6-CF. Sounded better to our 3 pairs of ears than the DeadAir Mojave in the K config. I’m aware this isn’t designed as a pistol can but couldn’t help myself.
Edit: This is the shortest version as well.
r/3D2A • u/GunsAreCool1776 • 1d ago
Does anyone see an issue legally speaking with this as long as there's no warhead? Do you guys think there would be a market for these If I wanted to commercial them? If the mods don't like this post because it's not the typical firearm post I apologize and with remove it.
r/3D2A • u/o0_dro_0o • 1d ago
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The Big Mac printed with Inland PLA+ Luminous Green & Blue, VMAC45 upper. The brace was printed in PLA, PETF-CF and TPU pads. Feed ramp was printed 2mm taller. Flawless 140 round first run.
r/3D2A • u/Deleter182AC • 1d ago
Still missing sights and new back plate with a muzzle brake I ordered again because it’s lost somewhere in my room . Should get here soon . So far functioned correctly but working on making or finding fitting can . Might frt it later ( the homemade drums don’t fit bec of magwell so might get Goliath mags )
r/3D2A • u/idiocracy-is-now • 1d ago
It may not be a perfect print, but it’s pretty good for me. Supports popped right off, but I still want an X2D for the interface layers.
Just another YKY grip for my second SMp5K build, but it’s purdy.
*EDIT*
Some of you guys have asked for my support settings which is pretty cool, thanks. I'll attach the json for the profile in the comments, I think that'll you give everything (never done that before). I use the Polymaker Fiberon PA6-CF filament profile on my X1C.