TBAC Dominus-Sr

Details

The DOMINUS-SR is our high-performance hard-use/full-auto 5.56 and .30 caliber suppressor.It delivers four principal design goals:
1. full-auto durability;
2. light-weight titanium construction;
3. best-in-class repeatability, accuracy, and retention; and
4. similar suppression to the Ultra series .

It is a true light-weight "Go To War" suppressor and is perfect for 5.56 assault rifles and .30 caliber battle rifles, including SBR variants. It retains the accuracy and repeatability TBAC is known for. It's equally at home on a 0.25 MOA bolt rifle on the 1500-yard range as it is on a MK18 in the CQB house.

The 6.95-inch DOMINUS-SR meters at 137 dB (milspec left/right) and 126 dB at shooters-ear¹ on a 20-inch .308. This puts it right between the Ultra 7 and Ultra 9, These are numbers from our PULSE system which should be considered definitive, supplanting all data from the older 2209 sound-level meters.

The DOMINUS-SR features our "SR" quick-attach/detach mount to provide Secondary Retention, retention during hard-use and heat cycles, and precision-rifle-level accuracy.

The DOMINUS-SR is rated for what we call a "Hard-Use/Full-Auto" (HU/FA) firing schedule. We specify this as surviving at least 10 cycles of the SOCOM/SURG firing schedule. The SR mount keeps the suppressor tight throughout each cycle and is a key feature in enabling this rating. After 10 SOCOM/SURG cycles, a test unit metered 1 dB louder than a brand new unit. The SR mount still functions and is easily removed at the end of the series of cycles (see video on the right-hand column).

The DOMINUS-SR is shorter but fatter than the ULTRA series, and about the same weight per volume. It is 6.95 inches long and 1.8 inches in diameter. The DOMINUS-SR itself weighs 12.5 ounces. The SR brake weighs 3.5 ounces. The SR brakes are compatible with all SR series suppressors (eg, DOMINUS-SR, 338 ULTRA SR).

Rapid Fire

Magnum rated!
Length: 6.95 inches
Weight: 12.5 ounces
Diameter: 1.85" OD (collar) / 1.8" OD
Build materials: titanium, brake material heat treated 17-4 stainless steel
Finish: Black Cerakote™
Mount: SR series brake (full spec)
Rating: .30 caliber, up to .300 RUM

What’s In the Box?

5/8X24tpi Thread Pattern 30SR Muzzle device (Shipped Separately)
User manual

Specifications

More Information
Weight	12.5 oz
Finish	Cerakote™
Dimensions	10x13x1

Product Questions (25)

Customer Questions

What is the best budget 30 cal suppressor for shooters on a tight budget?

The YHM Resonator R2 and Otter Creek Labs Polonium 30 are popular budget-friendly options. They offer reliable performance and effective sound suppression at a lower price point, making them suitable choices for shooters mindful of cost without sacrificing quality

What is the quietest 223 suppressor currently available, and is it suitable for an AR-15?

The quietest 223 suppressors include the CAT WB, PTR VENT 3, and HUXWRX FLOW 556. These silencers focus on suppressing the AR15, they feature back pressure reduction, advanced materials, and innovative designs.

What is the best AR-15 suppressor adapter, and how does it affect performance?

There are many popular QD mounting devices for the AR-15, such as: Dead Air Keymo, SilencerCo ASR, Q Plan B, and more.

Can a faux suppressor on a 5.56 rifle offer any real benefits, or is it purely cosmetic?

Faux silencers or blast diverters can help keep some of the blast away from the shooter, but will often make your rifle sound louder and can actually increase felt recoil. Get a real suppressor if you want the best muzzle device for your firearms.

How does the best 5.56 suppressor under $500 compare to more expensive models?

Suppressors around $500, like the Otter Creek Labs Polonium, offer: Good Sound Suppression: Effective noise reduction suitable for most shooters. Durability: Constructed with robust materials. Value: Cost-effective without significant compromise on performance.

What makes the Surefire suppressor 556 a popular choice among AR-15 enthusiasts?

The SureFire SOCOM556-RC2 suppressor is popular due to its: Sound Performance: Cuts down on decibels and protects your hearing. Durability: Built to withstand harsh conditions and high rates of fire. Minimal Point-of-Impact Shift: Maintains rifle accuracy. Quick-Attach System: Allows rapid attachment and detachment. Military Adoption: Proven performance in military applications enhances its reputation.

Can you shoot .223 out of a 5.56 suppressor, and what are the considerations?

Yes, you can shoot .223 Remington ammunition through a 5.56 suppressor.

How loud is an AR-15 with a suppressor, and what factors affect the sound reduction?

A suppressed AR-15 significantly reduces the hearing damage risk and sound of a gunshot. Factors affecting sound reduction include: Suppressor Design: Baffle configuration and internal volume. Ammunition: Subsonic vs. supersonic rounds (though subsonic 5.56 ammo is rare). Barrel Length: Shorter barrels may produce louder shots. Environmental Conditions: Surroundings can influence perceived noise.

What is the difference between an AR-15 silencer and an AR-15 suppressor?

There is no difference between an AR-15 silencer and an AR-15 suppressor; the terms are used interchangeably. Both refer to devices attached to the firearm's muzzle to reduce the sound of gunfire.

Can I use a .30 cal suppressor on a 5.56 rifle, and what are the pros and cons?

Yes! .30 Caliber silencers will work on the smaller 5.56 round. The pros are the versatility to run the suppressor ona variety of firearms and calibers, at the cost of some sound performance due to the larger bore.

How does the quietest 5.56 suppressor compare to other suppressors on the market?

The quietest 5.56 silencers are all designed speicially for the 556/.223 round, which allows them to excel in performance but they trade off multi caliber versatility.

What is the best 5.56 suppressor for 2024, and why should I consider it for my AR-15?

Some of the top suppressors for 5.56 rifles in 2024 include the SureFire SOCOM556-RC3, CAT WB, and PTR Vent 3. These suppressors are designed specifically for the AR15 platform, minimizing sound while maximizing reliability. These silencers feature low back pressure designs, signature reducing end caps, and advanced baffle designs to protect your hearing.

How does the YHM 30 cal suppressor perform in terms of durability and noise reduction?

Yankee Hill Machine (YHM) .30 cal suppressors, like the Resonator series, are known for their solid construction and effective noise reduction. Made from durable materials like stainless steel and Inconel, they withstand rigorous use.

What are the best 30 cal suppressors for rifles, and how do they perform?

Popular .30 caliber suppressors include the SilencerCo Omega 300, Dead Air Nomad-30, and HUXWRX FLOW 762 Ti. These suppressors are renowned for their excellent sound reduction, durability, and versatility across various rifle platforms. They effectively lower muzzle noise and reduce recoil, enhancing shooting comfort and accuracy.

Can I use a 30 cal suppressor on both my 5.56 and 9mm firearms?

30 Caliber silencers can shoot 5.56 but will not work with 9mm. For a silencer that can handle all of these rounds, check out multi cal suppressors like the SilencerCo Omega 36M or Rugged Alaskan 360.

How does a Rugged 30 cal suppressor perform compared to other brands?

Rugged Suppressors, such as the Surge X 7.62, are praised for their modularity and durability. They allow users to adjust the suppressor's length, offering a balance between sound suppression and maneuverability.

What is the quietest 30 cal suppressor on the market, and how does it achieve superior noise reduction?

Suppressors like the CAT JL, PTR VENT 1 and CGS Hyperion are often cited for exceptional noise reduction. They achieve superior suppression through advanced baffle designs using 3D printing, high-quality materials, and optimized internal volume that effectively reduce muzzle blast and sound signature.

Can you use a 30 cal suppressor on a 6.5 Creedmoor, and how does it perform?

Yes, a .30 cal suppressor can be used on a 6.5 Creedmoor rifle. Performance is generally excellent, with effective sound reduction and minimal impact on accuracy.

What are the benefits of using a Dead Air 30 cal suppressor for your rifle?

Dead Air suppressors, such as the Nomad-30 or Sandman S, offer excellent sound suppression, modular mounting options, and lightweight designs. Benefits include reduced recoil, enhanced shooting comfort, and the ability to use the suppressor across multiple rifles and calibers due to its versatility.

How does the Surefire 30 cal suppressor compare to other suppressors on the market?

SureFire .30 cal suppressors, like the SOCOM300-SPS, are known for their rugged construction, minimal point-of-impact shift, and consistent performance. They are often used by military and law enforcement.

What is the thread pitch for a 30 cal suppressor, and how does it affect compatibility?

The most common thread pitch for .30 cal rifles is 5/8x24. The thread pitch must match between the rifle barrel and the suppressor or its mount. Many silencers use interchangable mounts to allow for maximum versatility across multiple firearms.

Can you shoot 9mm through a 30 cal suppressor, and what should you be aware of?

No. 30 cal silencers will not work on 9mm firearms. 9mm is larger in diameter than 308/7.62 and cannot be fired from a 30 caliber suppressor.

What calibers can you use with a 30 cal suppressor, and are there any limitations?

A .30 cal suppressor can typically handle calibers up to .30 caliber, such as .308 Winchester, .300 Blackout, 7.62x39mm, 300 WinMag, and 6.5 Creedmoor. It can also be used with smaller calibers like 5.56 NATO. Some silencers will have barrel length restrictions, fire rate recommendations, or specific caliber ratings.

How does a .30 cal suppressor compare to a 5.56 suppressor in terms of performance?

A .30 cal suppressor offers greater versatility since it can handle multiple calibers, including 5.56. However, a dedicated 5.56 suppressor may provide slightly better sound suppression for that specific caliber due to a tighter bore and optimized baffle design. The trade-off is between versatility and maximum suppression efficiency for a single caliber.

Can you use a 30 cal suppressor on a 5.56 rifle, and what are the considerations?

Yes, you can use a .30 cal suppressor on a 5.56 rifle because the larger bore accommodates the smaller 5.56 bullet. Considerations include a slight compromise in sound suppression compared to a dedicated 5.56 suppressor and potential differences in weight and length.

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