Airlock IndustriesZero Gravity 30
.30 Cal / 7.62mm suppressor · 5/8x24 Direct Thread interface · specs and compatibility from the manufacturer
Notable features
- TBAC Summit Tested
- Direct Thread
length
6″
weight
7.7oz
MSRP
$1,049
length
6″
weight
7.7oz
calibers
5.56–.30
material
Titanium
interface
5/8x24 Direct Thread
MSRP
$1,049
- Overall length
- 6″
- Class
- .30 Cal / 7.62mm
- n
- 638
- Range
- 2.5″–14″
- Median
- 7.24″
- Diameter
- 1.7″
- Weight
- 7.7 oz
- Class
- .30 Cal / 7.62mm
- n
- 631
- Range
- 4 oz–39.8 oz
- Median
- 13.75 oz
- Material
- 3D printed titanium
- Max caliber
- .30
- Base interface
- 5/8x24 Direct Thread
- Full-auto rated
- No
- Barrel restriction
- 16" minimum
- Firing schedule
- 15 rounds per minute and not more than 1 round per second, then let cool; never exceed 800 degrees F
- MSRP
- $1,049
Shorter 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.
Lighter 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
- 5/8x24 Direct Thread
This suppressor threads straight onto the barrel, so no mount is required. 7 mounts in our catalog are thread adapters that let it run on other barrel threads.
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. Zero Gravity 30 was measured in 4 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 2026122.2 dBat the ear · 27.5 dB quieter than the 2025 unsuppressed baseline55 tested →
- .308, 20" bolt-action rifle 2026126.5 dBat the ear · 29.4 dB quieter than the 2024 unsuppressed baseline50 tested →
- .300 Win Mag, 26" bolt-action rifle 2026130.6 dBat the ear · 26.5 dB quieter than the 2025 unsuppressed baseline38 tested →
Gas-operated rifles and carbines
Measurements published by Thunder Beast Arms Corp. How to read these
Manufacturer claim
- Our ZG6.5, ZG7, and our ZG30 cans are rated for use with +Peak ammo.
- Sound at ear 127 dB; the at-muzzle figure is published as TBD. Measured on a 20" 308 shooting M80 149gr. Recorded with Larson Davis 821IH-QPR.
- Our patented Vector technology violently disrupts the gas flow inside the suppressor, increasing turbulence and slowing the gases. That controlled disruption reduces gas energy and sound signature, making the suppressor significantly quieter and more efficient for its compact form factor.
- Features a built in 5/8-24 direct thread mount.
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- US Registered Patent No.: 12,613,072
- Our suppressors are 100% made in Idaho, USA, from start to finish.
- Crafted from Aerospace-grade 3D printed titanium.
- Our warranty covers manufacturer defects and normal use only. Warranty is voided by misuse, abuse, modification, improper mounting, or use on unrated calibers or barrel lengths.
- Airlock recommends cleaning the suppressor after it gains an ounce of carbon: soak it in a suppressor cleaning solution that breaks up carbon, flush thoroughly and dry well. An ultrasonic cleaner is also an option. Thread locker is not recommended.
- Designed without compromise, the Zero Gravity 30 is purpose-built for backcountry hunters.
- Barrel Restrictions: 16" barrel minimum. Approved for 7mm BackCountry down to a 16" barrel.
- Fire rate: 15RPM & not more than 1 round per second - then let cool (NEVER exceed 800 F).
