SilencerCo Omega 9SD For the H&K MP5SD

As I prepare to become two years older since the day I decided to invest in an MP5SD from TPM Outfitters (and I still don’t have it in hand), I find myself staring longingly at pictures of random MP5s and other H&K clones. Don’t feel bad for me (I knew you wouldn’t anyway), I bit into this NFA apple at one of the busiest times in Form 3/4 history. I also realize that it sounds like someone complaining about the brake dust on their new Porsche rims. Anyway, SilencerCo is giving me even more MP5SD porn to lust after. They have  just released the Omega 9SD.

The new MP5SD-specific silencer has two important features. First, the overall length is reduced to under eight inches as opposed to the ~12″ of the originals and current SD silencer clones. Second, SilencerCo is reporting a further decibel reduction over the “original” MP5SD – even with its reduced length.

Honestly, the length reduction is a great idea – extending a few inches past the handguard versus six or more inches is a dramatic decrease. My main concerns with the 9SD revolve around maintenance and cost. Reading through the user manual, the silencer doesn’t appear to be user serviceable. Meaning the notoriously dirty ported barrel of the SD will slowly but surely fill the Omega with lead.

And priced at nearly $1200 means it is about twice the current MP5SD silencer options currently on the market.

Now, having said all that, I still want one – because it looks and (I bet) sounds great.

Details, specifications, links and the user manual can be found below.

  • SKU: 2428
  • WEIGHT: 13.7 OZ
  • LENGTH: 7.96″ | 3.45″ PAST THE BARREL
  • DIAMETER: 1.567″ (39.8MM)
  • MSRP: $1180
  • For dealers, contact SilencerCo directly to place an order:
  • For military, law enforcement, or government inquiries, contact
  • For civilian purchases, place a request through your dealer of choice.

Omega 9SD

SilencerCo Omega 9SD:

The Omega 9SD was designed specifically for one host: the MP5SD. The mount is fully welded and threaded in 18 X 1 to marry the MP5SD perfectly. The Omega 9SD is rated for the MP5SD’s barrel. Suppressors must be free of obstructions such as mud, dirt, etc. Do NOT attempt to shoot through an obstructed suppressor. The Omega 9SD was designed to be used “dry” and free of any ablative media, such as grease and water. If submerged in water, the user must allow a minimum 6 second drain time after exiting the water.


The Omega 9SD typically requires limited maintenance. If the finish becomes discolored, wipe the suppressor with any high quality gun oil; this should restore the finish to the factory condition. While not required, the end user may submerse the Omega 9SD in solvent, oil, gun cleaner, etc. to remove fouling. Allow the suppressor to drain fully and blow out with compressed air until dry. If necessary, run a cleaning brush through the bore to remove any light fouling. Do not run cleaning patches through the bore as the patches might become lodged in the suppressor and cause damage upon firing. CAUTION: Always read the warning label on any cleaner or solvent, and remember that virtually all solvents are inherently dangerous and potentially toxic. Always use adequate ventilation and both skin and eye protection when using solvents.



LE – Science – OSINT.
On a mission to make all of my guns as quiet as possible.
Twitter: @gunboxready
Instagram: @tfb_pete


  • Joe

    Neat, but nope.
    I’ll take a 4″ barrel and a standard suppressor for my SD clone, please.

    • KestrelBike

      And the MP5 upper is the serialized firearm portion, too. Barrels are pressed in, and I had a hard time (know of just one, but he wouldn’t do work with non-HK brand weapons) finding a gunsmith around Virginia that could/would work with MP5/clones barrels.

      So theoretically, you could get any MP5 clone, then find a ported SD barrel & sleeve assembly, then add this SilencerCo SD silencer to it and get it all pressed in. But then you realize… this is a s***load of $$$ I’m putting in for pure nostalgia. And that’s great if you got the dough/patience/time/effort. However, there are many, many easier/better options to getting a silenced PCC, even an MP5 type.

      My goal is a MP5-A3 clone with MK-9K silencer, and I’m just waiting now on the silencer to get out of jail… 11 months and counting. I started the quest back on December 21, 2015 with the purchase of a MKE Zenith Z-5RS.

      • Pete – TFB Writer

        Threaded MK9K or three lug? I’ve been waiting for a three lug version to come back in stock.

        • Havok

          Pete, braced or non-braced version? I’m seeing several in stock as I type this.

        • KestrelBike

          Three lug. It was definitely the more difficult to find, and it was quite a saga. I stupidly waited ~6mo after a bubba at an LGS told me that he could get it direct, special order, from Gemtech because he had an “in” with them and I could skip the Form 3 wait. Well, Gemtech kept snowing him over and he extended that snow-over to me on a bi-weekly basis until I got fed up with waiting and ordered it out of state from an online dealer who had always had one in stock.

          Of course, by the time the form 3 came through, it was past July 2017 deadline before 41F/P. I would have had this silencer over a year ago if I had just originally sucked it up and dealt with ordering it online.

          I purchased mine from AVGuns. W/ shipping it was $765, then the usual $150 gouge for transfer fee at my LGS (different from the one w/ bubba the snow-monster). Now showing out of stock, but they have the notify-feature:
          http://store.avguns .com/special-deals/9mm-gemtech-mk-9k-3-lug-qd-mount-sound-suppressor/

          Kinda interesting, but I had always searched SilShop to see if they even carried a placeholder for them, and I see that now they do:
          https://www.silencershop .com/gemtech-mk-9k.html

          I was also keeping an eye on gunbroker, but they don’t even have any used/threaded up for sale.

          • Pete – TFB Writer

            Good info, thanks. Too funny, I think you bought the one from AVG that I was considering. He had one new/old stock available last year then it was gone.

            $150 transfer is robbery. Sorry that you have to deal with that FFL

          • HSR47

            It’s certainly high, but you’re also renting room in the dealer’s safe for 6-12 months…

            I can’t speak for all dealers, but my employer currently has over 200 silencers with pending F4s, along with a smattering of SBR/SBS/MG/AOW waiting alongside them, a bunch of approved transfers waiting for customer pickup, and a bunch of transfers waiting for the customers to come in to start paperwork.

            That’s a LOT of stuff to keep track of, and it takes up a fair amount of space. When transfer times get this long, a ~$50 transfer fee for a silencer often doesn’t cover the costs of the transfer, especially when the average buyer requires a lot of hand-holding through the process.

          • Pete – TFB Writer

            You’re right, I shouldn’t insinuate that the process is easy. But part of me wonders if the dealer is losing out owbn other customers with a $150 fee. It would be hard to justify buying a $250 rimfire Silencer when the fee is $150.

  • TheApana

    Where do you even get these MP5SD clones?

    • PK

      There are a few options, but Pete went with TPM Outfitters. They make great guns.

  • Sianmink

    For the cost and use, anyone who has one of these and a MP5SD can also afford an ultrasonic cleaner to kick the lead out of the can.

    • Pete – TFB Writer

      Will it take the finish off?

      • Sianmink

        doesn’t hurt most hard finishes like cerakote. I’d worry if it was just paint, but it’s not.