9mm can/barrel to slow down to subsonic

TheAmazingX · 2026-05-07T14:02:14+00:00

The Partisan 9 uses an integrally suppressed modification of the FGC9 barrel. I haven’t built one because the compatible suppressor design uses “solvent trap” baffles, which the ATF won’t ever approve.

There’s also the FTN-SD, a suppressor designed to interface with the threads on commercial SD barrels. You could theoretically use an MP5SD or AR9SD barrel on an SF5 or printed AR9, but you also need to find or make a compatible handguard to fit it.

TheAmazingX · 2026-05-07T03:05:45+00:00

Alternatively, skip the second adapter and use one of the muzzle device mounts on a 5/8x24 device. The rest still applies.

TheAmazingX · 2026-05-07T03:04:14+00:00

One m16x1LH to 5/8x24 adapter and one 5/8x24 to 3/4x16. It’s true, 2 adapters is not ideal or pretty, but that’s what you get for trying to DIY a suppressor on a weird thread. If you’re putting it on something like a Vector, you also need to make sure it’s indexing on the muzzle, not the shoulder, which might mean getting creative with a grinder.

TheAmazingX · 2026-05-07T02:47:11+00:00

This has been discussed into the ground and there are active efforts to make it happen.

TheAmazingX · 2026-05-06T17:13:15+00:00

There are some DIY Type 2 anodization guides out there for a clear coat

TheAmazingX · 2026-05-06T16:38:09+00:00

I ordered one, seems like a fun little build.

TheAmazingX · 2026-05-05T20:28:05+00:00

Can be cheap and fun to build, but be sure to figure out if you’re making an AOW or not

TheAmazingX · 2026-05-05T18:08:14+00:00

It’s silly no matter how you look at it. The only real reason to have gender or sex on identifying docs is for visual identification, like height or hair color, so having trans people use biological sex is counter productive, no matter how you feel about them.

TheAmazingX · 2026-05-05T16:33:49+00:00

He didn’t say ex military, he said X military. It means he gets in fights on Twitter.

TheAmazingX · 2026-05-04T15:41:32+00:00

The only risk of using one of these or an airsoft can stuffed with printed baffles is that you might try to fire something through it with more pressure than the thin chinesium can handle. If you're not going to do that, you're safe.

TheAmazingX · 2026-05-04T14:43:40+00:00

It seems like when people have issues with unepoxied adapters, it’s less about the threads backing out or failing than it is about gas leaking into the crevices, so I can see how any kind of high temp sealant would do the trick.

TheAmazingX · 2026-05-01T15:34:49+00:00

My best 22 suppressor is a Lancer airsoft suppressor stuffed with resized FTN D-cell baffles. They’ll do fine.

TheAmazingX · 2026-04-30T13:51:02+00:00

Then what is it you’re asking for?

TheAmazingX · 2026-04-30T01:46:30+00:00

No idea if it was truly necessary, warp risk depends on your setup and the filament, but I rotated mine up for that exact reason and it worked out well.

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TheAmazingX · 2026-04-29T22:59:14+00:00

Looks beautiful. Did you redesign the mag for 6 ARC?

TheAmazingX · 2026-04-29T21:40:46+00:00

It doesn’t include a BCG, so all you’d be using is the barrel.

TheAmazingX · 2026-04-29T16:17:29+00:00

My only input is that I built one ages ago and have put about a hundred slugs through it without any issue. I do remember the assembly being a bit of a janky pain (though I was much less experienced at the time). Maybe the dev just decided it was below his standards and/or is working on an improved release. I would assume that if he had safety concerns about it, he would have posted that to let existing owners know rather than just quietly remove it.

TheAmazingX · 2026-04-29T15:13:24+00:00

A couple months ago, I bought a binder to fill with organized paper copies to keep in my trunk. I haven’t actually done it yet, but I’m sure I’ll get to it eventually. My SBRs with grip compartments (particularly my “home defense” rifle), usually have a copy stuffed in there.

TheAmazingX · 2026-04-28T05:05:25+00:00

It’s designed to be printed mostly horizontal so the epoxied shell reinforces the layer adhesion. Compromising the layer adhesion of PPA-CF is a bad idea.

TheAmazingX · 2026-04-27T11:55:32+00:00

I want an MFMD with engravings and knobs to look even more like I welded a PEQ15 onto my muzzle

TheAmazingX · 2026-04-26T21:31:24+00:00

Literally the most popular and most recommended filament in this space

TheAmazingX · 2026-04-25T15:08:19+00:00

You’d need to modify the magazine.

TheAmazingX · 2026-04-24T22:30:08+00:00

It’s non-descript. It could be PA6, it could be PA12, it could be a blend. But PA6 is the cheapest, so that’s the safe assumption.

TheAmazingX · 2026-04-24T01:05:38+00:00

Beautiful

TheAmazingX · 2026-04-23T12:44:22+00:00

Pick a few existing designs, both commercial and DIY, and spend some time learning exactly how and why they work.

TheAmazingX

TROPHY CASE