Suppressors DOMINUS-K-SR

[Zak Smith]

Thunder Beast Arms Corporation [TBAC] | News

Thunder Beast Arms Corporation [TBAC] | Products | DOMINUS-K-SR

The new DOMINUS-K-SR is the “Short” or “Kurz” version of the hard-use, ultra-lightweight DOMINUS-SR.

The DOMINUS-K-SR is 5.45″ long, 1.8″ in diameter, and weighs only 10.0 ounces. This is 1.5″ shorter and 2.5 ounces lighter than the full-size version. When mounted, it adds only 4.87″ to the barrel overall length.


Just like its larger brother, the DOMINUS-K-SR is designed to withstand at least 10 cycles of the punishing SOCOM/SURG firing schedule, which earns it a hard-use/full-auto rating. It has our SR mount for precision-rifle-level accuracy along with positive retention.


The DOMINUS-K-SR meters at 145 dB (milspec left/right) and 134 dB at shooters-ear on a 20-inch .308 bolt-action rifle. This is roughly 4 dB quieter than the ULTRA 5 for the muzzle measurement.


On 10.3-inch MK18 (without any special tuning) shooting Mk318 5.56 ammunition, it meters at 145 dB muzzle (milspec left/right) and 144 dB at the shooter’s ear. Note that this is the same as the shooter’s ear dB for the full-size DOMINUS-SR for an untuned upper, which means that the shooter is experiencing primarily noise from the action as opposed to noise from the muzzle report.

 

[22-Dasher]

SICK as all get up! Will it be available with the CB mount!!!?

 

[HillBilly n TX]

Seems like the perfect complement for a SR-15 CQB

 

[stello1001]

This is nice!!!

 

[redneckbmxer24]

NEED.

 

[isofahunter]

Putting on B Day list!

 

[Zak Smith]

SICK as all get up! Will it be available with the CB mount!!!?

At this time we do not have plans for that version, given this one's intended application, but if there's demand there's no reason we couldn't.

 

[black5.3]

Man that thing is swweeeeett!

 

[RyanScott]

Zak, I would also like one with a CB mount. I’d also like a 5.56 bore but that’s not the critical thing for me that a CB mount is.

 

[Zak Smith]

Noted, re: CB.

A 556 bore would almost certainly make it louder to the shooter on a gas gun.

 

[Zatchmo]

*sigh* I don't even have paperwork back on the regular size, but I already want this one, too. It's probably more appropriately sized for an already long 22" upper.

 

[RyanScott]

Zak, noted about the bore.

My compadres and I are too heavily invested in CB stuff to get a new mounting system.

 

[Zak Smith]

Understood!

 

[Jnull]

I’d also be much more interested in a CB mount. That’d be a great hunting setup.

 

[brado16]

Interested in a CB Mount as well- Just paid the Deposit on my 338 @Zak Smith, would I be able to still switch order to the Dominus-SR if I choose too?

 

[hk401]

Ordered 2 Dominus SR in April. 15 and the serial estimated should be Nov. to Dec. 15. So I think I will call TBAC to replace 1 of Sr to the "K"

 

[Zak Smith]

brado16, please call so we can look up your specific order and see what the "Form" status is. It gets a lot harder to back stuff up once forms have been initiated with ATF.

 

[HansohnBrothers]

Ordered! Should have them by March (estimated) according to TBAC. Be sure to join the waitlist!

https://hansohnbrothers.com/shop/thunder-beast/silencers/30-caliber/thunder-beast-dominus-k-sr/

 

[hk401]

Called TBAC to change order from Dominus SR to "K". And my estimated assigned between 11-19-2020 and 12-02-2020.

 

[Sniperwannabee]

so i guess if you were just using it for AR platforms this is the way to go

 

[Zak Smith]

Please note that if you're changing over existing orders in our queue, that are coming up in Q4, computed "ETAs" that are coming up soon may not be super accurate due to the latency of starting up production of these.

 

[Zak Smith]

Not sure if I get the logic on the AR platform comment?

 

[Sniperwannabee]

If just shooting 300BO or 556 in a AR platform your description says there is no difference in db level. Is that correct?

 

[Zak Smith]

The statement was about Mk318 556 from a 10" SBR, this one is no louder to the shooter than the full size Dominus

 

[Guns&WhiteWater]

I have been going back and forth between an Ultra 5 and Dominos to be ordered within the next few months, but if you guys decide to make this guy in a CB version then that will be my choice. I just want something a little more compact than my Ultra 7 to put on my 16” hunting rifles and my new BLK pistol, but would still be right at home on my target rifles.

 

[craigos]

well f me, i just got dont wiht dominus and dominus SR form 4.

 

[samb300]

The statement was about Mk318 556 from a 10" SBR, this one is no louder to the shooter than the full size Dominus

Zak,

According to the product pages, the DOMINUS is 8-9 dB quieter than the DOMINUS-K from a 20” .308. Does the full size retain that advantage over the “K” when going down to a 13” .308 like a SCAR SBR? Or would the “K” be just as good, like it is on a 10.3” 5.56 AR?

Thanks!

Sam

 

[Zak Smith]

I don't have the .308, 12.7" gas gun numbers for the Dominus-K-SR yet. Our test gun is down with broken parts.

But the difference you're seeing is the difference between a bolt gun and a gas gun in the two scenarios (not to mention the muzzle of the system is a lot further from the ear in the bolt gun case vs. a SBR).

I expect the .308 SBR gas gun results to more closely mirror the .223 gas gun results, versus having it track caliber. As soon as we have those numbers I'll post them.

Ammo choice can make a substantial difference in dB levels. For example, on the 556 SBR with the Dominus-K-SR, M193 was about 4 dB louder at the muzzle vs. Mk318.

With regard to other semi-auto platforms (ie, the various piston systems vs. DI), the net suppressed dB levels in some cases are going to be dominated by the gas-bleed ports, if the system vents the gas out after the piston starts moving (e.g., Sig 550 series).

 

[EmanP]

Could we order a CB version now so that when you finally make them in 9 months we can get the serial number to start the paperwork?

 

[22-Dasher]

So we can order a K-CB then??
I could order the Ultra 5 but the way it sounds the K will be quieter?!!

 

[Zak Smith]

No, but we're noting the interest..

 

[Jgunner]

This is the can i need, amazing figures. Its like ya’ll read my mind. Short and light and fa rated!

 

[YammyMonkey]

I would definitely be interested in a CB version as well.

 

[Tacovrd]

View attachment 7441527

Thunder Beast Arms Corporation [TBAC] | News

Thunder Beast Arms Corporation [TBAC] | Products | DOMINUS-K-SR

The new DOMINUS-K-SR is the “Short” or “Kurz” version of the hard-use, ultra-lightweight DOMINUS-SR.

The DOMINUS-K-SR is 5.45″ long, 1.8″ in diameter, and weighs only 10.0 ounces. This is 1.5″ shorter and 2.5 ounces lighter than the full-size version. When mounted, it adds only 4.87″ to the barrel overall length.


Just like its larger brother, the DOMINUS-K-SR is designed to withstand at least 10 cycles of the punishing SOCOM/SURG firing schedule, which earns it a hard-use/full-auto rating. It has our SR mount for precision-rifle-level accuracy along with positive retention.


The DOMINUS-K-SR meters at 145 dB (milspec left/right) and 134 dB at shooters-ear on a 20-inch .308 bolt-action rifle. This is roughly 4 dB quieter than the ULTRA 5 for the muzzle measurement.


On 10.3-inch MK18 (without any special tuning) shooting Mk318 5.56 ammunition, it meters at 145 dB muzzle (milspec left/right) and 144 dB at the shooter’s ear. Note that this is the same as the shooter’s ear dB for the full-size DOMINUS-SR for an untuned upper, which means that the shooter is experiencing primarily noise from the action as opposed to noise from the muzzle report.

Very nice!

 

[BikePilot]

@Zak Smith would you recommend a K or full size dominus for a 308 gas gun with an 18" barrel and adjustable gas block? The shorter length of the K would be super handy if it doesn't increase back pressure or make it massively louder.

Also, any idea how a dominus of either length would run on a 5.56 Tavor X95?

 

[EmanP]

Do you think there ever be a direct thread version?

 

[Zak Smith]

We don't have a Tavor so I can't say. If it has an adjustable/switchable gas block I don't see any reason why it wouldn't just work.

We should have .308 gas gun meter numbers on these cans in the next week or so, and I can give better data then. However, my own take would be to use the K to keep the OAL added down and keep the port noise quieter (ie, what the shooter hears), based on the muzzle vs. shooter's ear numbers on the 556 MK18. Yes, the full size Dominus is quite a bit quieter at the muzzle but the thing about gas guns is that the peak sound pressure the shooter experiences is usually from the port, which is influenced by backpressure.

 

[BikePilot]

Great, thanks! The Tavor is has a couple of positions for gas, but isn't fully adjustable like an adjustable AR gas block.

 

[usmc45]

Another vote for a CB version of this can. Love my Ultra 5 and would be awesome to have this on my precision AR

 

[22-Dasher]

I don’t think there is much of a need for this can in a CB version now that the Gen 2 Ultra 5 has been released.

 

[craigos]

I just picked up a Dominus CB and SR (have 4 ultras and a 22 takedown) -- and had a chance to buy a ultra sr in 338 - its in FDE. Well i really wanted a ASR colored Ultra 338 - any ability to get the can repainted to ASR? Yes i have an ASR.

 

[The_Next_Generation]

Another vote for a CB version of this can. Love my Ultra 5 and would be awesome to have this on my precision AR

Why? The logic doesn't make sense to me. Hard-use and shorter overall configuration = Dominus. Precision, lighter, and quieter overall configuration = Ultra Gen 2.

My understanding is that the Dominus line is primarily intended for abuse. Removing the locking collar/SR mounting interface reduces the firing schedule it was originally intended for. The Dominus (non-K) loses the full auto rating with the CB version. If your application demands anything less than a bombproof mounting system, just stick with the Ultra lineup. They are quieter and lighter, at least as far as what's shown on the TBAC website.

*sigh* I don't even have paperwork back on the regular size, but I already want this one, too. It's probably more appropriately sized for an already long 22" upper.

You've clearly decided that this is more of a long-range setup. Why not go with an appropriate can? The numbers on the Ultra 5 Gen 2 beat the Dominus K. Again, quieter and lighter....you won't be doing mag dump after mag dump, so why sacrifice sound performance.

As far as being too heavily invested in the CB mounting system, why not just buy a new mount or two for the rifles you want to suppress with the Dominus-K? I could see the appeal of having the shorter option for hunting, when you would swap out your Ultra 9 for a shorter option during the season...but if that's your use-case, why not go with an Ultra 5?

 

[Zatchmo]

You've clearly decided that this is more of a long-range setup. Why not go with an appropriate can? The numbers on the Ultra 5 Gen 2 beat the Dominus K. Again, quieter and lighter....you won't be doing mag dump after mag dump, so why sacrifice sound performance.

Because the Dominus was better performing on a gas gun when I bought it. The Gen 2 and the K were still under wraps. I'm 100% sure I'll be satisfied, the K would just slightly better fit my application.

 

[THEOZZ]

I watched the video of this and the other suppressors you guys tested. I figured that the longer suppressors would be quiter than the DOMINUS-K but it was quiter at the shooters ear than the other 2. Looks like a good choice for a SBR setup. It would be interesting to see the db on a 6.75" 300Blk with subs.

 

[Zak Smith]

I just picked up a Dominus CB and SR (have 4 ultras and a 22 takedown) -- and had a chance to buy a ultra sr in 338 - its in FDE. Well i really wanted a ASR colored Ultra 338 - any ability to get the can repainted to ASR? Yes i have an ASR.

We can refinish them, give Blake a call and he'll get you squared away

 

[Zak Smith]

The numbers on the Ultra 5 Gen 2 beat the Dominus K. Again, quieter and lighter.

The Dominus-K-SR and the Ultra 5 Gen2 meter almost identical on a bolt gun, plus or minus depending on caliber, etc. Getting both of these on the meter in the same video is also on the to-do list.

 

[usmc45]

in theory Would a Dominus-K-CB be able to handle more abuse on an AR then the Ultra 5 Gen2?

 

[Zak Smith]

In the sense of firing rate, no (due to lack of secondary retention).

In the sense that it would have slightly shorter barrel length minimums for cartridges in SBR barrel lengths, yes.

 

[HansohnBrothers]

in theory Would a Dominus-K-CB be able to handle more abuse on an AR then the Ultra 5 Gen2?

For AR, the Dominus SR-K would be more appropriate I think.

 

[Jgunner]

Any more numbers on this? Debating the k or full length version. It will occasionally be on a precision hunting rifle.