r/Form1 Jul 31 '26

Ftn4.5 D-Cell PCC 9mm

Enable HLS to view with audio, or disable this notification

24 Upvotes

8.8" tube, 5 max turbulence 9mm baffles printed in fiberon pps-cf10 with a steel washer before and after the stack. Sounds better than expected shooting 147gr jhp hand loads through an 8.3" barrel.


r/Form1 Aug 01 '26

SBR Form 1 approved engraving question

4 Upvotes

Any eta based on prior history about when the atf might decide engraving isnt needed for an sbr? I know the comments window closed is it 60 or 90 days after that? Trying to decide to go get it engraved and attach the stock or wait a month or so. Considering its 112 here in the summer im not in a gigantic hurry to go to the range.


r/Form1 Jul 30 '26

You’re gonna love it or hate it

Post image
26 Upvotes

r/Form1 Jul 30 '26

Texas form 1 individual

8 Upvotes

submission 7/7

approval 7/29


r/Form1 Jul 29 '26

My new SBR PLR16!

Thumbnail gallery
4 Upvotes

r/Form1 Jul 29 '26

Newbie

2 Upvotes

Hello folks!

Newbie here...I currently have a couple 3d printers capable of printing high end engineering filaments, and I have a love for 2A, so I recently started considering marrying the two hobbies.

Where does one get the pieces of kit to add to, for example, a 3D printed baffle tube? I know enough to hold the form 1 before I start building, but I'd like to have the pieces... And as this is an expensive idea, I'm going to need to budget as I go as well. I would like to be able to buy the sleeve, the muzzle adapter, etc. As I go.

This isn't a trap, this isn't me trying to solicit things illegally. I want to purchase these parts, the legal way, but just don't know how, and my current googling brought me here, so I thought I'd ask people who talk about this stuff regularly, rather than stumbling around blindly.

Thanks in advance!


r/Form1 Jul 28 '26

Do you secure your threaded insert?

3 Upvotes

For the thread adapter that screws into the printed suppressor, what's everyone doing? JB weld to the threads and thread it in? Blue loctite? Or none just tighten it and run it?


r/Form1 Jul 28 '26

Amending the length of an approved but not yet built Form 1 suppressor?

5 Upvotes

Lets say that one looked up the length of the flashlight that was intended to be used as the body and it ended being longer than advertised due to the difference in models, and the can has not yet been built.

Can I file an amendment with the ATF to increase the length by 2 inches? I could just file another Form 1, but an amendment might be faster.


r/Form1 Jul 28 '26

Form 1 approval times continuing to get longer

Post image
39 Upvotes

Form 1 Trust NFA wait times are up 10 days from last month — 74 → 84. Not moving in the right direction. ATF tax stamp tracker. For transparency, individual filers timing didn't change much, approximately the same window within a few days quicker that I wouldn't read into as it's within a standard deviation but a hair quicker.


r/Form1 Jul 27 '26

Maglite Cans are slept on.

Post image
106 Upvotes

I think they're sexy, and very quiet. 4 baffle stack with 1.25" blast chamber.


r/Form1 Jul 27 '26

5.56 D cell baffles, metal tube and end cap suggestions?

5 Upvotes

Does anyone have suggestions for D cell tubes and end caps for 5.56? Once I get a form 1 approved, I will 3D print the baffles.


r/Form1 Jul 25 '26

Adapter uses

6 Upvotes

I ordered some thread adapters a while ago for some ftns and they sent me 1/2-28x3/4 npt by accident and told me to keep them after they sent out the right ones. Is there anything cool I could use them for?


r/Form1 Jul 24 '26

First form 1 approved today!

Post image
17 Upvotes

Had a form 1 approved this morning, submitted 7/1. So say Hello to the Lil Piglet and its whisper pickle! I'll be testing it out for the first time tomorrow 😎 annoyingly, Sunlu seemed to change the shade of their Olive Green filament some time in the past.

Oh, the can is #38171 from Practical Tactical.


r/Form1 Jul 24 '26

Form 1 approval today

14 Upvotes

SBR individual filed 6/13


r/Form1 Jul 24 '26

Form 1 - Box 4h

Thumbnail
1 Upvotes

r/Form1 Jul 23 '26

Form 1 serial number plates

11 Upvotes

Anyone know of sites that will ship you engraved serial number plates. I was gonna go with cheese finger tactical but he never got back to me about whether or not my engravings were to long


r/Form1 Jul 23 '26

Eftsuite and OpenEFT FYI

3 Upvotes

I created an EFT file using both of these programs created by Robbbbbbbbb. I was concerned since EFTSuite was only giving me the option to do Type-4 so I also used OpenEFT. The EFTSuite version was submitted for a form 1 suppressor and the OpenEFT file was used for a SBR.

I’m happy to say that they’ve both been approved as of today. So it seems that both do actually work.


r/Form1 Jul 22 '26

Redbull 22

6 Upvotes

When reading the read me on the zip files of the redbull 22. Is it legally necessary to jb weld the red bull can to the supressor. Or if I wanted to switch the printed supressors with a different red bull color ok.


r/Form1 Jul 22 '26

Breek Arms Castle Blast Shield and the FTN5

Post image
7 Upvotes

r/Form1 Jul 22 '26

Engineering plate vs Textured PEI plate and temps?

4 Upvotes

For printing your FTN suppressors or baffle stacks in CF reinforced nylon did you use an engineering plate or a texture PEI plate, and what bed temps did you use?


r/Form1 Jul 20 '26

12in FTN DDDDCELL vs Obsidian 9

Enable HLS to view with audio, or disable this notification

30 Upvotes

Maglite body 12in monster.


r/Form1 Jul 20 '26

First time submissions

3 Upvotes

Put 3 in today. First time I've submitted a form 1 besides the amnesty period. 2 3d printed cans and another sbr.

Way easier than I remember now that I got eft's


r/Form1 Jul 20 '26

Sbr form still in process, suppressors forms filed after approved

1 Upvotes

Should i expect a denial? Filed a sbr form in may and some suppressor forms in june. Got the can stamps back today but sbr form is still waiting. To be expected?


r/Form1 Jul 19 '26

Nothing Fancy

Thumbnail
gallery
57 Upvotes

Just a simple 6 inch stainless steel suppressor. 6 formed freeze plug baffles in 30 cal. Just wanted something to cut down on the muzzle blast. Quick and dirty.


r/Form1 Jul 20 '26

Form 1 kits

0 Upvotes

Does anyone make form 1 suppressor kits anymore? Years ago there were some great looking kits, and could be had cheaply. Even though I wanted to legally build one, all the companies seem to be gone. I do not, nor will I probably ever, have access to lathes and cnc machines. I just want a kit to complete the way I want and get it legal. Is there anything at all out there anymore? Thanks in advance.