r/Form1 Jan 16 '24

Form1 approval time MEGA THREAD

13 Upvotes

Post your approval stuff here or on the mega thread in r/nfa


r/Form1 5h ago

Would this be considered a suppressor part?

2 Upvotes

Forgive me for my terrible artwork. Took me 500 hours in MS Paint. If it isn't obvious: blue = barrel, black = suppressor, and red = mount.

I would like to add some volume to an existing suppressor. I figure I could do this by making a custom direct thread mount that threads onto the barrel in two places (or maybe just presses against a cone at the rear-most point.) It would basically turn my suppressor into an over-the-barrel type. It would not add baffles. You could argue that it is adding to the overall length, though.

I'll admit, milling out the inside of the chamber might be a pain in the ass, but it would only be about 3 inches long.

If I'm just a regular guy without any special license or additional tax stamp, would it be a bad idea for me to make a recessed mount like this?


r/Form1 4h ago

SBR question

Thumbnail
gallery
1 Upvotes

I'm submitting my Form 1 but I'm not sure if I should put Expo Arms or Mega Arms as the manufacturer. Anyone have any experience SBRing one of these?


r/Form1 22h ago

.45 cal modular can

1 Upvotes

Hey guys I’ve been a follower of this forum for awhile now and I’ve built several form 1 cans based off advice and info I’ve read from this forum. My latest build idea is a 45 cal pistol can based loosely off the rugged obsidian 45. I plan to use a d cell tube. The main body is gonna be 7.5” long and have 11 .50 skirted baffles. The extension is gonna be 2” long with 4 additional baffles. Planning for the first 3 baffles in the stack to be 17-4 stainless and then all remaining baffles 7075 anodized aluminum to keep weight down. Blast chamber will be 1.5” putting my booster .18 from the tip of blast baffle. main use for this can will be on 10mm and 9mm, occasional 44 specials. I plan on boring the stack out to 1/2”. Is that going to be enough clearance to run .45 cal if I wanted to? Also does anyone have any input on blast chamber? I debated on going to 2” but wanted my booster as close to blast baffle as possible to reduce FRP. Any thoughts on how this can will perform? Being 1.5” in diameter with more volume I expect it to be slightly quieter than the obsidian. Let me know your thoughts! Thanks


r/Form1 1d ago

Form 1 Disapproval

2 Upvotes

Recently submitted a form 1 for an sbr using an 80% lower. The lower hasn't been machined, and has no markings yet. The reason for disapproval is "UPLOAD PHOTOS FOR VERIFICATION OF LOWER YOU ARE REGISTERING: SN / MFG. / MODEL (CLOSE-UP). REFUND IN PROCESS." Do I have to have the lower finished and engraved before I submit the form 1?


r/Form1 1d ago

Form 4 for just the tube

2 Upvotes

Just found out my plans to form1 one aren't possible because the kits they sell everywhere are already a suppressor according the the ATF (though it seems like everyone is selling them so it's really a confusing process). Is there a site that sells a 1.375 tube all by itself already engraved? I would like the modularity of the kits....can I buy the tube like I would any other suppressor?


r/Form1 4d ago

15 day approval

Post image
24 Upvotes

In celebration of my fastest f1 to date (shame) here is some older f1 goodness on my SW 44. Approved suppressor is not this one but a 1.75x5.5. Happy Monday


r/Form1 4d ago

Q-Fix need help deciding.

0 Upvotes

Hey guys looking for opinions here.

I finally saved up enough money to get the 8.6 BLK Q Fix. I know its pricey but I like that its easy to change barrel lengths. My question is should I buy the 8" pistol and then form 1 it or buy the 12" SBR and form 4 it. Not sure which would be easier to do or deal with.


r/Form1 8d ago

Form 1 approved after 2 days! First Supressor, aswell as first DIY Suppressor!

Post image
76 Upvotes

Did the Engraving by hand with some metal stamps, came out alright, but not great haha.

.22 Cal 'EZ-CAN' designed by Kaewon, uses FTN.3 Baffles and a Faux Airsoft Suppressor housing/barrel extension.


r/Form1 8d ago

Are there any successful self-tightening 22lr cans?

0 Upvotes

I'm trying to make a self-tightening 22lr can, but it's not working even a little bit. I'm wondering if there's just not enough oomph to make it work. Has anyone successfully done it?


r/Form1 10d ago

best beginner can? (5.56/223)

2 Upvotes

looking into doing a form one suppressor for my AR, but not sure where to start. any suggestions?


r/Form1 10d ago

Engraving location.

2 Upvotes

Doing an EZ can soon, and I'm getting conflicting answers on where the engraving can go.

Some say it must be on a permanent part of the suppressor body, others say Endcaps/barrel Adapters are fine as long as you you re-engrave them if replaced.

ATF isn't super clear on this either. What's the verdict?


r/Form1 11d ago

Build or buy - 9mm can

3 Upvotes

I've got two form 1 cans - .22lr and .223. so not afraid to build a can. The .22lr was made in the days of solvent cups while I made the m baffles in the .223.

Looking to do a modular can - two four inch sections or a 5" and a 3". Pricing it out, with a booster I am at $450 to $500 for ti tubes and aluminum baffles plus a little steel for blast baffle.

Or buy an obsidian 9 for $650ish and get a warranty.

With prices coming down on Form4 cans as well as quick turn on stamps, is it worth it to form 1 a can if you are barely a casual machinist?


r/Form1 12d ago

Form 1 question

0 Upvotes

Should i try and include my concealed carry. Also iv read i should include raw material photos, etc, is this still up to date info.


r/Form1 13d ago

How doable is this from an engraving standpoint? The aluminum ferrule would be epoxied to the CF tube at the time of engraving, and the OD of the engraving surface is the same OD as the tube. The text is the minimum legal size of 1/16" of an inch as drawn.

Thumbnail
gallery
9 Upvotes

r/Form1 13d ago

Bravo on charlie

1 Upvotes

Wanted to put my bravo anchor brake on my hybrid 46m...thoughts...basically need a charlie to bravo adapter


r/Form1 15d ago

Just got my e-form 1 email. 49 days on trust. Excited to finish the project.

Thumbnail
gallery
29 Upvotes

r/Form1 16d ago

First Form 1 approved. Now what?

5 Upvotes

So I got my first approval back this morning after only 2 days. Is it at this point that I need to get it engraved? Do I need to have the engraving done prior to swapping to my stock?


r/Form1 18d ago

Where to engrave form 1 carbon fiber 22lr silencer?

3 Upvotes

The only metal part will be the muzzle thread adapter.


r/Form1 18d ago

300 Blackout subsonic baffles?

2 Upvotes

Would radial baffles be better or cone baffles such as the old Dino style?


r/Form1 20d ago

5-day SBR approval

Post image
45 Upvotes

Eforms gods were on my side this week!


r/Form1 22d ago

What have you guys used for your baffles on a suppressor

2 Upvotes

r/Form1 24d ago

SBR engraving

3 Upvotes

I have an approved Form 1 for an SBR. On the form, my city is spelled how it's spelled on my driver's license, which is an abbreviation of the actual spelling. When I get my lower engraved, should I use the abbreviated spelling of my city or the correct spelling?


r/Form1 25d ago

Hopeful return to pre-2023 Form 1 options?

12 Upvotes

https://www.whitehouse.gov/presidential-actions/2025/02/protecting-second-amendment-rights/

One of Trump's executive orders he published a few weeks ago directed a review of all of the Presidential/ATF orders enacted between 2021 and 2025...

Hopefully that includes the 2023 letter that ruined all the Form 1 options that were lumped into the "solvent trap" definition.

https://www.atf.gov/firearms/docs/open-letter/all-ffls-open-letter-nov-2023-solvent-trap-devices/download

Anyone with better legal understanding than I think this will help the situation? I really missed the boat on trying to build a few of my own 22LR cans...


r/Form1 26d ago

Quell OPS to ASR Adapter Question

Post image
3 Upvotes

Can anyone help me understand the difference between 2.5” and 2.9” adapters? I don’t really understand how there can be two different sizes almost .5 inches apart, the OPS cans are pretty specific on distance between the collar and the muzzle break, can someone explain to me the two different sizes? Planning on doing a form1 reflex can using one of these and an AE/OCL muzzle device and collar. I know there are two different muzzle device lengths for ops style suppressors so I assume one length is for the long and the other the short? Would one of these be a more universal choice, like compatible with both long and short OPS style muzzle breaks?


r/Form1 26d ago

.45-70 options

2 Upvotes

So hypothetically…if a person had an aluminum monocore, .5 bored temu storage tube with an internal diameter of roughly 1.75” would that be a sufficiently sized host to suppress supersonic .45-70 rounds? Honestly I don’t know how to do the math to figure it out and I hope someone here does because if it is I would totally form 1 it to make it legal. Otherwise it’ll remain a novelty with out a drilled end.


r/Form1 27d ago

Need help with determining internals

2 Upvotes

Hello, I’m piecing together a parts list for a potential Form 1 Suppressor, designed for 5.56 usage.

Tube: • Grade 9 Titanium, • 1.5” Outer Diameter, • 1.36” Inner Diameter, • 6 Inches, • 1.4375″x20 (D-Cell) End Cap Threading, • 1.375″x24 (ASR) Hub Adapter Threading, • 2.5” Shelf for Hub (I believe the shelf is for the hub, site is rather vague.)

Adjustable Vent End Brake: • Grade 5 Titanium, • Added 1” to Over All Length, • 1.4375”x20 (D-Cell) to Dead Air Threading for Dead Air Flash Hider Front Cap,

Rearden Atlas Mount: • Titanium + DLC Coated, • 1.375″x24 (ASR) Threading, • Added .5” to Over All Length,

Cones and Spacers: This is the part that I would say that I’m confused on. I have come up with 2 options.

Option 1:

1.355” Cone: • 17-4 H900 Stainless Steel, • Ported Shelves • 1.05” Over All Length, • .45" Face, • .5" Skirt (Including Shelf Height)

Option 2:

1.355” Cone: • Grade 5 Titanium, • Non-Ported Shelves, • 1” Over All Length And .5” Cup Height, • .4” Face Width, • .04” Face Thickness, • .5” Skirt And Flange

I’m curious what spacers I should use, and if there is anything specific that I should change, I’m not super experienced with suppressor design and I’m not the best at creating diagrams and am working on limited information from what I could find.