I have almost zero knowledge of suppressors, I am looking for a suppressor for a DD PDW. https://danieldefense.com/ddm4-pdw.html
Light weight is important, so is ease of maintenance, multi caliber use(556, 9mm, maybe 308) but that’s not a priority.
Thanks

Is cost somethhing that matters very much? Is absolute sound performance an important criteria? Is backpressure a key consideration? Does actual size matter (independent of you want it light) and do you have some preferred method of mounting this to the gun?

A .30 caliber can is going to be good for .308 and 5.56, but if you want to get a can that’s also good for 9mm, then performance for .300/.308/5.56 is going to suffer a bit. For maintenance, most rifle caliber cans are sealed cans and not user serviceable, if that’s really important to you. But with the newer suppressor cleaners, soaking cans to clean them isn’t as much of an issue as it used to be. For light weight, you’ll probably want titanium. For mount options, I’d chose a HUB threaded can and then go with whatever adapter you want.

Right now, I’d take a hard look at the Sig Hexium 762. It’s light and has gotten some good reviews on Silencer Analytics. Light at 11oz, relatively short at just over 6”, low backpressure, under $900 at Silencer Shop, and HUB compatible. Sig also makes a Hexium 300, but it’s almost 9” long, which is probably a bit too much for a short PDW.

if you want 9mm then its into the .36cal do it all cans. Which as Dwill104 says are all purpose but master of none. I would normally just recommend the B&T from personal experience, but the situation at B&T is looking somewhat problematic. As an alternative you might look at the flow36 if 9mm is an actual requirement. If its not then I think Dwill104 has an excellent suggestion.

I have a hybrid Shaw Armament Jeckyll & Hyde 9mm/5.56 that is rated up to .338.

It's a 10" titanium/steel can that absolutely cuts the blast down to pleasant levels. It's much lighter than my CMMG steel suppressors by a longshot and completely servicable. BUt it cost twice what the CMMG suppressors did.

It sounds like an unsuppressed 22 with supersonic 5.56. If you're dead up close to the berm, it just makes a heavy FOOP!

I have it on a Dead Air Xeno mount so my flash hider looks like a military type.

The guts.




Full size on a 10.5 SBR




Here it is in 9mm K configuration.
Yes, I had it cerakoted. Looks MUCH better black.

I won’t say cost is no object but I am willing to go up and to $1500 but I would prefer to stay around 1000. I really want it more for 300 blackout and 556. I’ve plan on getting a second pistol suppressor eventually as I’ve done some reading over the last couple of days I want low back blast as well. I realize there’s no unicorn that you get everything you want. Thanks for the input so far guys. I was looking at a dead air Mojave nine but I am open to anything.

I assume you mean the Mojave 9 as your pistol suppressor, its not rated for 5.56. As a 9mm can its terriffic. My favorite among perhaps 15 others for 9mm that I have. More details if you want on that.
As for the .300 and 5.56 you don't say much about the 5.56 side, short barrel or not? In any case I would think you want a shorter suppressor for the DD or at least a modular one. Light weight is going to mean Titanium and hard use is going to lead one to inconel or others. Or as is done by B&T a combination. I really like the B&T XH and absent the mess at B&T would suggest it, but not possible. You can look at the Thuderbeast sound summit tests to see a lot of data about a lot of suppressors (https://thunderbeastarms.com/sound/summit2025/). One thing that shows is the .30 cal cans running 5.56 are louder by a lot than dedicated 5.56 cans. And take a look at Pew Sceince they have lots of .300BO test. From looking at those I would look into the OtterCreek Hydrogen as one option that might fit what you are thinking. Anyway there are a zillion options. But and it took me awhile to learn this, its best to just figure out what works best on the gun you are trying to suppress and just accept that another gun will be optimized by a different choice. The choices for a short barrel .300bo suppressor are way better if you don't try and stuff 5.56 or .308 or 9mm down it. All FWIW.

This message has been edited. Last edited by: hrcjon,

That’s where I am leaning just on can for .300BO the .556 are 16” barrels. Leaning towards the Hexium or SA J/H also the Banish 30V2 popped up on my radar

Ordered a Sig Hexium 7.62, yesterday, looking hard at my next on several months down the road a DA Lazarus 6.