Thunder Beast Spiro 5.56mm/.223 HUB

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.”

From the table, the SPIRO eclipses popular “low back pressure” suppressors in terms of muzzle and shooter’s ear suppression levels, when considered together. It does this while only adding approximately 5.3″ to the overall weapon length.

It is a “Go To War” suppressor designed for 10.5″, 5.56mm caliber assault rifles. It works great on .223 / 5.56mm caliber gas guns from 8″ up to 16″ or longer. The SPIRO is designed to be put on your 5.56mm carbine and shot a lot, only being removed for firearm maintenance and suppressor cleaning.

The SPIRO is made from Haynes 282, a nickel-chromium-cobalt-molybdenum “Super Alloy.” It is stronger than Inconel 718 and exceeds Inconel’s operating temperatures by about 500 degrees F. This makes the SPIRO almost indestructible. While our other “full auto rated” suppressors are guaranteed to last 10 cycles of the 8-mag SOCOM SURG test on a 10.5″ barrel, the SPIRO is rated for over 20 of the same cycles using an 8″ barrel instead of a 10.5″.

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 we invented the TBAC Method of Measuring Back Pressure, and then we used the same sound-test setup we use at the SILENCER SUMMIT to make a very low-back-pressure suppressor that is also unbelievably quiet at both the muzzle and at the shooter’s ear, for a suppressor under 6″.

Specifications: 

Maximum Rated Caliber: .223/5.5.56 caliber, .22 Creedmoor

Weight: 15.5 oz.

Length: 5.9″ (5.3″ DT)

Diameter: 1.8 – inch OD

Finish: Black Cerakote

Brake Material: Haynes 282

Mounts:

• Direct Thread 1/2-28 (DT)
• HUB (1.6″ from TE to first Baffle) – *NO MOUNT included with HUB version