Description
SHORT, HARD USE, PRECISION
Thunder Beast’s Dominus K is a shorter and more compact version of the high-performance hard-use original Dominus. It’s designed for 5.56 and 7.62 mm and is right at home on small, select-fire weapons where size matters. The Dominus K is only slightly longer than the Ultra 5, while remaining as light. Its design allows for more aggressive use, as well as a more robust mounting system than the CB series.
The compact, 5.54″ Dominus K meters slightly louder than its bigger brother at the muzzle; however, it’s the same at the shooter’s ear. There’s minimal difference to the shooter on an untuned semi-automatic rifle between the two. It’s also hearing safe at the shooter’s ear on a 20″ .308 bolt action rifle.
The “SR” mounting system, used by the Dominus and Dominus K stands for Secondary Retention. A quick-attach/detach mount provides both a taper surface for precision rifles and a secondary retention to ensure the suppressor does not back off under hard use. The Dominus K is rated for a “Hard-Use/Full-Auto” firing schedule. Thunder Beast specifies this as surviving at least 10 cycles of the SOCOM/SURG firing schedule.
CAPITOL ARMORY’S OPINION
The Dominus K from Thunder Beast is a more compact version of their Dominus. The Dominus series brings a great mix of a durable can and a lightweight one. The SR mount allows for a stronger secondary retention system for those who intend to be rough on the silencer. The K (Kurz) version was designed for use on 5.56 semi or full auto rifles, as well as 7.62 battle rifles, where a shorter overall length is more important than absolute decibel reduction. For those who love the Dominus but wanted something shorter, Thunder Beast has answered those requests.
FEATURES
- SR mounting system
- 100% titanium
- Tubeless design
- Full-auto rated
- 360-degree fully-welded baffle core
- Ionbond DLC coating on SR muzzle devices
- Conical shoulder surface on SR mount
- Magnum and SBR rated
- Rock-solid POI Repeatability
WHAT’S INCLUDED
- One muzzle device
COMPATIBILITY
- Thunder Beast’s SR mounts









