Otter Creek LabsHydrogen L
.30 Cal / 7.62mm suppressor · HUB 1.375x24 interface · specs and compatibility from the manufacturer and independent testers
Notable features
- HUB Compatible
- PEW Science Reviewed
- TBAC Summit Tested
- Full-Auto Rated
- Sealed
length
9″
weight
11.9oz
length
9″
weight
11.9oz
calibers
5.56–.30
material
Titanium
interface
HUB 1.375x24
- Overall length
- 9″
- Class
- .30 Cal / 7.62mm
- n
- 513
- Range
- 3.5″–12.25″
- Median
- 7.4″
- Diameter
- 1.63″
- Weight
- 11.9 oz
- Material
- Grade 5 Titanium
- Max caliber
- .30 Cal / 7.62mm
- Base interface
- HUB 1.375x24
- Front cap
- none
- Full-auto rated
- Yes
- Firing schedule
- Responsible/limited full auto — suppressor must not exceed 800 degrees
- Maintenance
- Sealed (not user serviceable)
Longer than most .30 Cal / 7.62mm suppressors
Length compared against the 513 .30 Cal / 7.62mm suppressors in the catalog that publish one. Quartile basis; a value inside the middle half carries no note.
Not published by the manufacturer: MSRP.
- Base interface
- HUB 1.375x24
- Front cap
- none
The HUB 1.375x24 is an open standard: 415 mounts and 818 muzzle devices in our catalog fit this suppressor, including Otter Creek Labs HUB Direct Thread Adapter (1/2x28), 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, on the same day, with the same equipment. Hydrogen L was measured in 6 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
- .308, 20" bolt-action rifle 2024123.7 dBat the ear · 32.2 dB quieter than unsuppressed95 tested →
- .300 Blackout subsonic, 16" bolt-action rifle 2025115.0 dBat the ear · 34.7 dB quieter than unsuppressed85 tested →
- .300 Win Mag, 26" bolt-action rifle 2025125.2 dBat the ear · 32.0 dB quieter than unsuppressed68 tested →
- .308, 20" bolt-action rifle 2023121.7 dBat the ear · 33.9 dB quieter than unsuppressed64 tested →
Gas-operated rifles and carbines
Measurements published by Thunder Beast Arms Corp. How to read these
Measured sound results are in the Sound tests section above.
PEW Science · independent test
This suppressor has been independently sound-tested by PEW Science.
Manufacturer claim
- All Hydrogen series suppressors feature industry standard universal 1.375x24 rear threads so you can pick what mounting system best fits your needs. Made from grade 5 titanium and constructed as a tubeless design.
- What's included in the box: Suppressor, Stickers, Instruction and specs pamphlet, 5/8x24 direct thread adapter, Tube clamp for installing mounts.
- Barrel length restrictions: 24″ - 300 Norma, 300 RUM; 22″ - 300 PRC; 20″ - 300 win mag; 14.5″ - 308, 6.5 creed; 11.5″ - 5.56/223; 7″ - 300 blackout super sonic; 5″ - 300 blackout subsonic.