Omega 9K 1st can. Meh.

Unless it's drastically quieter on my AP5 than it was on my AP5K I'll say, "Meh". (Fiocchi 147 gr and 158 gr PPU)

I was hoping it would be considerably quieter on the Vz-61 (Trilug adapter) than it was on the K, but not really. I mean it is quieter on the .32 but in the same bracket.

The bracket is it's hearing safe for a mag or two.

The Omega 9k made my guns sound like a sub-sonic .22 does without a can. Still loud enough you should wear ear pro. And loud enough that a listener 100 yds away will know you're shooting a gun. (I think)

So what does it get me? Well, I can shoot with just muffs, and it would be fantastic for HD because it's quicker than throwing on electronic ears.

I couldn't use the can on the AP5 because the trilug has too much play. I ordered a direct thread adaptor for the can.

Should I get a full-size can or will I be somewhat disappointed with that, too?

Hollywood is a facade.

I’ve always heard to start with a full size can because almost everyone that starts with a shorty is disappointed in the sound reduction. You’re already into the NFA world now, might as well have a full size too.


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I think the Omega 9K is the best ban SiCO makes. The suppression it provides for the length makes it a super practical can.

I use mine on pistols most of the time but appreciate the flexibility to put in a PCC or 300blk SBR to take the edge off.


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Originally Posted by Wake27

I’ve always heard to start with a full size can because almost everyone that starts with a shorty is disappointed in the sound reduction. You’re already into the NFA world now, might as well have a full size too.


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Probably a good idea.

Hopefully my adapter comes in so I can try it on the AP5.

I'm not expecting it to be dramatically quieter. But a little.

Considering next a full-size can for .32 / 9mm or a .223 or .30 cal. can for a .223 16 in. rifle.

I've been waiting for Allegheny Arms to get Beretta .32 barrels but they won't be any quieter than the Vz61. That makes me think either I won't bother or I need a bigger can.

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Originally Posted by 1168

Hollywood is a facade.

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I knew the K-can wouldn't be as quiet as a full-size can.
I was hoping for very loud hand claps, port noise, and action noise. But I got unsuppressed .22 / fire cracker-level noise.

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Originally Posted by Ron3

I was hoping for very loud hand claps, port noise, and action noise. But I got unsuppressed .22 / fire cracker-level noise.

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You're not gonna get "very loud hand claps" with a full-sized can, either. The loudest recorded hand clap was 117.4 dB, and the record before that was 113 dB; a suppressed .22 LR using a full-sized can is as loud as 113 dB.

The human ear is terrible at judging volume without side-by-side comparisons, and even then, it's not very good.

Beyond that, while someone might be able to hear a suppressed 9mm shot at 100 yards away, would they know what it is? The change in acoustic signature is one of the key advantages of using a can, beyond simple suppression, along with visual signature reduction.

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Originally Posted by Defaultmp3

You're not gonna get "very loud hand claps" with a full-sized can, either. The loudest recorded hand clap was 117.4 dB, and the record before that was 113 dB; a suppressed .22 LR using a full-sized can is as loud as 113 dB.

The human ear is terrible at judging volume without side-by-side comparisons, and even then, it's not very good.

Beyond that, while someone might be able to hear a suppressed 9mm shot at 100 yards away, would they know what it is? The change in acoustic signature is one of the key advantages of using a can, beyond simple suppression, along with visual signature reduction.

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Thanks for the insight.

Ambient noise drastically influences the way that we perceive, or don’t perceive, noise.

The way that you perceive .22lr subsonic unsuppressed to be similar to 9mm subs, suppressed, is about on par. Even with a very good silencer on a semiautomatic host, action noise is very loud.

Drop the bolt empty on your host a few times late at night in your quiet house while your wife is sleeping with an open door in the next room, and you’ll see what I mean. HK slap. Better yet, don’t actually do that, just think about it, because I don’t want your wife to murder you for waking her up several times.

Point is, you may need to manage your expectations. Your Omega 9k is widely said to be a very good can, especially for its length. You should definitely get a longer can, just because, and it will be fun to compare them.

I compared the Omega 9k vs DA Wolfman and thought the Wolfman would be a much better choice.

The DA is very versatile and can be run in short and long config. Friend got both. I tried them on my Banshee 8”. The wolfman in short config is quieter than the 9K with subs and supers.

I couldn’t tell the difference between the short and long configs with subs by the way.


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