Thunder Beast Sound Suppressors - Setting the standard for 50BMG performance
Thunder Beast Sound Suppressors - Proven in the field
Thunder Beast Sound Suppressors - Built For Accuracy, By Shooters - Tactical, Competition, Sporting
Thunder Beast Sound Suppressors - Making 50BMG Shootable Again
Thunder Beast Sound Suppressors - Built For Accuracy, By Shooters - Tactical, Competition, Sporting
SHOT SHOW 2026
Hello and welcome to 2026!
SHOT SHOW
Next week (Jan 19-23) most of our office staff is going to be manning our booth at SHOT Show to take orders and answer product questions. Our main office in Cheyenne WY will have a skeleton crew. As a result, your calls during that week are likely to go to voicemail and it will take longer than normal to get back to you via email. If you need to contact us and are not at SHOT, please either email us or call and leave a voicemail. We will get back to you, but it might take 24-48 hours.
If you are attending SHOT, please come see us at booth 72905. We are right next to Mile High Shooting in the new CAESAR’S FORUM building, just south of the Venetian.
We will have examples of the new SPIRO can in our booth, and we will be at the MIL/LE Range Day on Monday.
TBAC Low Back Pressure: SPIRO
The SPIRO is a low back pressure gas gun suppressor that has excellent sound suppression levels at both the muzzle and at shooter’s ear. No longer do you have to compromise and have your gas gun suppressor be “Low back pressure but loud at the muzzle.”

People have been talking about “low back pressure” for a while, but there hasn’t been an objective method to actually quantify it. We weren’t satisfied with that, so went back to basic science and developed a way to directly measure back flow in a gas gun. We then used the same sound-test setup from the Silencer Summit to develop a very low back-pressure suppressor that is quiet at the muzzle and at the shooter’s ear position.

For full details, including comparative suppression data and the back pressure measurement “white paper”, please SPIRO WEB PAGE, but here are the highlights:
- Initial version for .223/5.56
- Designed around the 5.56mm MK18 (10.3″)
- Quieter at the muzzle and ear, than a full-size DOMINUS, on a MK18
- Made of super-durable Haynes 282, will survive at least 20x 8-magazine SURG cycles on an 8″ barrel
- MSRP $995
- Initial versions will be Direct Thread (DT) or HUB (“Bravo” 1.375-24), SR versions to follow later this year



A dedicated 6mm version for 6ARC, etc, will be available to order a few weeks after SHOT Show. Additional gas gun cartridge-specific versions will be phased in throughout 2026. The introduction of the SPIRO does not affect the applicability of the Ultra and Magnus lines to bolt guns.
The SPIRO is in production now and is available to order now. Mile High Shooting and Allen Arms will have them start to be available a week or two after SHOT Show.
The SPIRO is made on a completely different production line than our Ultra and Magnus, so the production delays of either series will not necessarily affect the other. Product ETA’s will be different line to line. The current backlog for Ultra/Magnus/22TD cans is about 4-5 months.
DOMINUS “RETIRED”
With the introduction of the SPIRO, the DOMINUS line is being retired. For .223/5.56 gas guns, the 5.56 SPIRO is a better suppressor. The DOMINUS and DOMINUS-K models have direct replacements in the MAGNUS-S, and MAGNUS-K suppressors. Existing DOMINUS orders will be fulfilled.
CHRISTMAS HOURS
We will be closed December 25-26. We will reopen on Monday Dec 29th with normal hours. Merry Christmas!
We will also be closed Jan 1st.
Closed Thurs-Fri for Thanksgiving
We will be closed November 27-28 for Thanksgiving. Normal hours will resume Monday Dec 1st.
Closed Labor Day
We will be closed Monday Sept 1st for Labor Day. Normal hours will resume on Tuesday.
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