QTall Boy
.30 Cal / 7.62mm suppressor · Plan-B interface · specs and compatibility from the manufacturer
Notable features
- TBAC Summit Tested
- Full-Auto Rated
Where to buy
Prices update nightly
Guns.com
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length
10.25″
weight
19oz
MSRP
$950
length
10.25″
weight
19oz
calibers
5.56–.30
material
Steel
interface
Plan-B
MSRP
$950
Photos
Image: Q
- Overall length
- 10.25″
- Class
- .30 Cal / 7.62mm
- n
- 638
- Range
- 2.5″–14″
- Median
- 7.24″
- Diameter
- 1.75″
- Weight
- 19 oz
- Class
- .30 Cal / 7.62mm
- n
- 631
- Range
- 4 oz–39.8 oz
- Median
- 13.75 oz
- Material
- Premium Steel
- Finish / treatment
- BLACK NITRIDE
- Max caliber
- .30 Cal / 7.62mm
- Base interface
- Plan-B
- Front cap
- none
- Full-auto rated
- Yes
- MSRP
- $950
Longer than most .30 Cal / 7.62mm suppressors
Length compared against the 638 .30 Cal / 7.62mm suppressors in the catalog that publish one. Quartile basis; a value inside the middle half carries no note.
Heavier than most .30 Cal / 7.62mm suppressors
Weight compared against the 631 .30 Cal / 7.62mm 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
- Plan-B
- Front cap
- none
This suppressor's Plan-B takes no separate mount. 252 muzzle devices in our catalog attach to it directly.
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. Tall Boy was measured in 3 tests. Figures can only be compared with others from the same test, so each one links to everything else fired on that gun.
Bolt-action and lever rifles
- .300 Blackout subsonic, 16" bolt-action rifle 2025116.7 dBat the ear · 33.0 dB quieter than unsuppressed84 tested →
- .308, 20" bolt-action rifle 2025122.1 dBat the ear · 33.8 dB quieter than the 2024 unsuppressed baseline70 tested →
- .300 Win Mag, 26" bolt-action rifle 2025127.1 dBat the ear · 30.0 dB quieter than unsuppressed67 tested →
Measurements published by Thunder Beast Arms Corp. How to read these
Manufacturer claim
- The Q Tall Boy .30 cal silencer is purpose-built for one thing: maximum sound suppression , especially with subsonic 300 Blackout .
- If your goal is the quietest possible 300 BLK setup , this is where you end up.
- The Tall Boy is engineered to optimize gas flow, reduce sound signature, and deliver ultra-quiet performance .
- Its extended internal architecture slows and cools expanding gases more effectively than shorter suppressors, producing a movie-quiet shooting experience .
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- If you’ve ever wanted to hear what “as quiet as possible” actually sounds like—this is it.
- Run it hard, shoot it often, and don’t worry about babying it.
- Because more volume equals more suppression.
- And more suppression means quieter shots, better performance, and less signature .
- High strength construction
- Designed for long-term reliability
- Built entirely from steel , the Tall Boy is designed for durability, longevity, and real-world use .
- While optimized for subsonic 300 BLK , the Tall Boy maintains performance across a wide range of calibers, including .300 Win Mag .
