TBACSPIRO 223 HUB
5.56mm / .223 suppressor · HUB 1.375x24 interface · specs and compatibility from the manufacturer
Notable features
- HUB Compatible
- Low Backpressure
- TBAC Summit Tested
- Haynes 282
- Full-Auto Rated
length
5.9″
weight
15.5oz
MSRP
$995
length
5.9″
weight
15.5oz
calibers
5.56
material
Haynes 282
interface
HUB 1.375x24
MSRP
$995
- Overall length
- 5.9″
- Diameter
- 1.8″
- Class
- 5.56mm / .223
- n
- 359
- Range
- 1″–2.2″
- Median
- 1.6″
- Weight
- 15.5 oz
- Material
- Haynes 282
- Max caliber
- 5.56mm / .223
- Base interface
- HUB 1.375x24
- Front cap
- Fixed
- Backpressure
- Low
- Full-auto rated
- Yes
- Barrel restriction
- 8" minimum
- Minimum barrel lengths for SPIRO 5.56: any barrel length for 4.6x30 HK and 5.7 FN; 8" for .223, 5.56mm, 5.45 Russian; 12.5" for 22 ARC, 224 Valkyrie; 18.0" for .22-250, 22 Creedmoor.
- Firing schedule
- Hard-Use/Full-Auto Mod 1 (HU/FA/1): lifetime to exceed at least 20 SOCOM/SURG cycles on an 8.0" Mk18-style AR (the upper and muzzle device will likely not survive the whole trial). HUB version: the suppressor is rated, but TBAC says keeping the HUB mount tight and straight is on the user
- MSRP
- $995
Wider than most 5.56mm / .223 suppressors
Diameter compared against the 359 5.56mm / .223 suppressors in the catalog that publish one. Quartile basis; a value inside the middle half carries no note.
Prices are manufacturer's suggested retail (MSRP). What you pay may differ.
- Base interface
- HUB 1.375x24
- Front cap
- Fixed
The HUB 1.375x24 is an open standard: 489 mounts and 934 muzzle devices in our catalog fit this suppressor, including TBAC CB2HUB Adapter, AAC 51T S.T.A.M.P. Mount and AB Suppressor AB Raptor Adapter. You aren't locked into one manufacturer's parts.
Which ones fit your barrel and host?
Check in the BuilderThe Thunder Beast Silencer Summit fires every suppressor entered on the same gun, with the same equipment. SPIRO 223 HUB was measured in 1 test. Figures can only be compared with others from the same test, so each one links to everything else fired on that gun.
Gas-operated rifles and carbines
Measurements published by Thunder Beast Arms Corp. How to read these
Manufacturer claim
- Is the HUB version also full auto rated? Kind of. The suppressor is rated for it, if your mounting system will stay tight and keep the can straight. For HUB versions, that is on you. DT with Nord-Lock washers will stay tight, and so will SR.
- No longer do you have to compromise and have your gas gun suppressor be "Low back pressure but loud at the muzzle." The 5.56 SPIRO increases back pressure gas flow by only approximately 50% compared to a bare muzzle (most LBP are 35-85%), which is 3X less gas than a Dominus-SR.
- The SPIRO only increases the cyclic rate of an Mk18 by about 5% (compared to 43% for a Dominus-SR; most LBP 3%-10%).
- This is while keeping Shooter's Ear peak dBA at 137.7 (LEq dBA 124.9), and milspec-left muzzle position 138.2 dBA (LEq dBA 124.4).
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- Mounts: Direct Thread 1/2-28 (DT) -- for .223 Direct Thread 5/8-24 (DT) -- for .243 HUB (1.6" from TE to first baffle) * no mount included with HUB version SR v2.
- Low Back Pressure Gas Gun Suppressor Extreme Duty/Full-Auto Dedicated versions for 5.56mm; 6mm (6ARC) Available in SR (v2) mount, Direct Thread, and 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 .
- Finish: Black CeraKote.
- Brake material: Haynes 282.
- Rated Hard-Use/Full-Auto Mod 1 [HU/FA/1]: lifetime to exceed at least 20 SURG cycles on an 8.0" Mk18 style AR, versus 10 cycles on a 10.5" barrel for the other TBAC full-auto rated suppressors. The upper and muzzle device will likely not survive the entire trial.
- Minimum barrel lengths for SPIRO 5.56: any barrel length for 4.6x30 HK and 5.7 FN; 8" for .223, 5.56mm, 5.45 Russian; 12.5" for 22 ARC, 224 Valkyrie; 18.0" for .22-250, 22 Creedmoor.
- The HUB interface version is meant for advanced users who are familiar with HUB-compatible mounts and know how to use their choice of HUB mounting system securely. No mount is included with the HUB version, and everything behind the suppressor body is the user's responsibility.