The DOMINUS-CB was discontinued January 2024 and replaced with the MAGNUS-S-CB
Click here to proceed to the MAGNUS family specs page.
Titanium Precision Rifle Suppressor
Jan'23 Update-- Now available with HUB interface.
The DOMINUS-CB is a high-performance .30
caliber suppressor. It delivers three principal design goals:
1. light-weight titanium construction;
2. best-in-class repeatability and accuracy; and
3. similar suppression to the Ultra series .
The DOMINUS-CB is based on our DOMINUS-SR suppressor, but uses the CB mount. Please refer to the DOMINUS-SR specifications page for more information about the SR. The CB mount derates the retention level from full-auto capable but the resulting suppressor is lighter, shorter, and less expensive vs. the DOMINUS-SR.
Compared to the ULTRA 7, the DOMINUS-CB is 0.75" shorter and larger in diameter by 0.30", and meters the same. It meters at 137 dB (milspec left/right) and 126 dB at shooters-ear1 on a 20-inch .308. These are numbers from our PULSE system which should be considered definitive, supplanting all data from the older 2209 sound-level meters.
The DOMINUS-CB features our "CB" mount system for interoperability with all CB muzzle devices, for users who have other ULTRA series suppressors.
The DOMINUS-CB is shorter but fatter than the ULTRA series, and about the same weight per volume. It is 6.25 inches long and 1.8 inches in diameter. The DOMINUS-CB itself weighs 9.6 ounces. The CB brake weighs 2.6 ounces.
I already have an Ultra 9/7/5, will the DOMINUS-CB fit on my CB brake mounts?
Yes, it fits on all CB series mounts.
Once built a CB version cannot be changed to an SR version.
Will the CB brake make a 14.5" barrel reach 16"?
No, but the CB Flash Hider will.
Why isn't this suppressor "Modular"?
We design a suppressor for a specific purpose
and the entire design is optimized to best accomplish that goal. This is the first light-weight precision rifle
suppressors that is also a hard-use/full-auto suppressor. Adding modularity might make it "seem" like
the suppressor is more adaptable but it actually becomes a hindrance to the primary design goals. Forcing modularity
often requires a compromise to things like: repeatability, weight, or strength. Most modular or adaptable suppressors
do "Okay" at a variety of applications but aren't "GREAT" at any of them. We design our suppressors to be "The Best" at what they're designed for.
Why isn't this version full-auto rated like the DOMINUS-SR? Isn't it the same suppressor
The CB version is mostly the same as the SR version, except the rear end is different. Thus the strength
of the suppressor itself is the same, but without the retention and locking capabilities of the SR mount,
the CB mount does not retain the "Full Auto" rating. Other than that, the minimum barrel length ratings will
be the same.
Why doesn't this look like other "tubeless" cans? What's the deal with tubeless?
Conventional centerfire rifle suppressors are typically built with a tube, a baffle stack that includes the thread or mount-end, and a front endcap. The "right way" to build a suppressor like this is to fully weld the entire baffle stack together, insert it into the tube, and then weld it together again. When done properly, both the baffle stack and the tube contribute to the pressure rating of the suppressor. A "tubeless" design is simply one
in which the baffles are welded together and all the finishing operations are done to the outside of the resulting suppressor body, and no tube is placed over the welded baffle stack. When both designs are done properly and to the same strength rating, the tubeless design enjoys a very slight weight advantage; but it's mainly a lot "cleaner" to manufacture, with few operations that can warp the suppressor or leave it with residual stresses. Many people consider a "tubeless" design to be more advanced than "tubed" designs; but really, the end-user shouldn't care how it's built because you can build a great suppressor either way, and there are some good reasons to stick with tubed designs.
The HUB interface version of this suppressor is meant for advanced users who are familiar with HUB-compatible mounts and know how to use their choice of HUB mounting system in a secure, reliable, and repeatable manner. If you get the HUB version, you should know what you're doing. Everything behind the suppressor body is your responsibility.
We are not responsible for damage caused to this suppressor by another manufacturer's HUB mount system, through its use, misuse, incompatibilities, or any other reason related to the mounting system.
For our part, we will guarantee that the HUB interface is correct and the suppressor will have acceptably-low runout when mounted on a TBAC reference HUB/DT interface.
For the Ultra 5, 7, and 9, the HUB versions have a slightly larger outer diameter (OD) at the rear of the suppressor to accomodate the 1.375" internal threads, compared to the normal CB versions. For the Magnus and the Dominus, the stepped-down section at the rear of the suppressor is slightly larger OD compared to the CB version (but smaller than the SR version).
Minimum barrel lengths:
| 5.5" | .300 Blackout (subsonic and full power) |
| 7.5" | 6.8 SPC, 7.62x39 |
| 10.3" | 223 Rem, 5.56, 6.5 Grendel |
| 12.5" | .308 Win, .260 Rem, 6.5 Creedmoor |
| 16" | 6.5 SAUM, 6.5 PRC, 7WSM, 7 SAUM, 7RM, 300 WSM |
| 18" | 300WM |
| 20" | 7 STW |
| 22" | 26 Nosler, 28 Nosler, 300 WBY, 6.5-300 WBY |
| 26" | 7 RUM, 300 Norma, 300 RUM, 300 PRC |
Note on dB ratings
We now specify the dB rating
as a single number due to the long-term consistency of the B&K PULSE system. These should be considered the "reference"
numbers compared to anything published previously -- please see our youtube videos.
| Maximum rated caliber | .30 caliber, up to .300 RUM |
| Material | Titanium |
| Length | 6.25 inches |
| Diameter | 1.8-inch max OD |
| Mounts | CB series brake or flash hider, or HUB |
| Weight | 9.6 ounces |
| Brake threads available | 1/2-28*, 5/8-24, 9/16-24, 9/16-28 3/4-24, 3/4-28, M16x1.0, M18x1.0, M18x1.5 * Note: The 1/2-28 brake has part number 223CB-BRK:1/2-28 and has a .223 caliber aperture! |
| Finish | Black CeraKote; OD Green or FDE available |
| Brake Material | Heat-treated 17-4 stainless |
| Brake Finish | Ionbond DLC |
| Use | Precision/Long-range |
| Price | $1330 CB Mount (one brake included) $1330 HUB (mount system not included) |
| Warranty | TBAC Limited Lifetime Warranty |
| How to order a suppressor | |
There is general confusion as to what firing schedules different suppressors on the market can actually withstand. We've seen "full auto"-rated suppressors that will fall apart after a few mags of full auto, and on the other hand, there are some "precision rifle suppressors" that will actually withstand a lot of abuse.
We rate our suppressors conservatively and try to be as accurate as possible in our description of what use they can withstand "forever" or for their defined service life. To this end, we have defined the following firing-schedule categories for our centerfire rifle suppressors.
This category contains our entire ULTRA series as well as the DOMINUS-CB. These suppressors can withstand firing schedules from a semi-automatic centerfire rifle in which a sight picture is obtained for each shot. This typically means a sustained firing rate not to exceed about one shot per 3 seconds for 2-3 magazines.
Suppressors in this category have a defined minimum barrel length which depends principally on the cartridge's pressure curve and secondarily on the thermal input (esp. for SBR barrel lengths).
Even though the ULTRA suppressors are "precision rifle cans", they are a lot more durable than most people think when someone says a "bolt-gun suppressor." The ULTRA 5, 7, 9, and 338 ULTRA also lack a mount with secondary retention, and the possibility exists that one could loosen during full-auto bursts.
