Estimated reading time: 7 minutes
The Airlock Industries Zero Gravity 30 weighs just 7.5 ounces and measures 6 inches long, but the 2026 Silencer Summit numbers show this titanium hunting suppressor can run surprisingly close to much bigger cans. After shooting it on a .300 PRC, I understand why.
Table of contents
- A 7.5-Ounce Suppressor That Refuses to Act Small
- Watch the Airlock Zero Gravity 30 Run on a .300 PRC
- Airlock Zero Gravity 30 Specs: 7.5 Ounces of Titanium
- 2026 Silencer Summit Results: The Numbers Get Interesting
- Airlock Zero Gravity 30 vs. the 2026 Silencer Summit
- When Every Ounce Matters, the Zero Gravity 30 Pulls Ahead
- .300 PRC Test: How the Zero Gravity 30 Sounds Behind the Rifle
- The Ultralight Titanium Tradeoff: Heat Comes Fast
- Zero Gravity 30 Pros and Cons: Where It Wins and Where It Doesn’t
- Airlock Zero Gravity 30 Verdict: Built for Hunters Who Count Ounces
- Related Reads from GunsAmerica Digest
- Learn More About the Airlock Zero Gravity 30
A 7.5-Ounce Suppressor That Refuses to Act Small
The problem with most really quiet suppressors is pretty simple. They are big and heavy. That may not matter much on a range rifle, but hang another pound off the end of a hunting rifle and carry it through the mountains all day and you will notice it.
The Airlock Industries Zero Gravity 30 goes the other direction, and that is what makes this Airlock Zero Gravity 30 review interesting. It weighs just 7.5 ounces and measures 6 inches long, yet its performance at the 2026 Thunder Beast Silencer Summit put it near the top of the field against suppressors substantially larger and heavier than it.
After digging through the Summit numbers and shooting the Zero Gravity 30 on my .300 PRC, I came away pretty impressed. If you’re looking at suppressors specifically for hunting, this one deserves some attention.
Watch the Airlock Zero Gravity 30 Run on a .300 PRC
For the video, I mounted the Zero Gravity 30 on my Seekins Precision .300 PRC and shot Hornady 225-grain ELD Match ammunition through it. I also moved the microphone between the shooter’s ear, beside the rifle, and behind it so you can hear the difference from several positions.
Airlock Zero Gravity 30 Specs: 7.5 Ounces of Titanium
The Zero Gravity 30 is 3D printed from titanium and uses Airlock’s internal Vector technology to control expanding gas.
| Weight | 7.5 oz |
|---|---|
| Length | 6 inches |
| Added rifle length | 5.375 inches |
| Diameter | 1.7 inches |
| Material | 3D-printed titanium |
| Mount | Direct thread, 5/8×24 |
| Maximum caliber | .30 caliber |
| MSRP | $1,049 |
Airlock builds the suppressor in Horseshoe Bend, Idaho.
That 7.5-ounce weight matters more than it might seem. Suppressor weight sits way out at the end of the barrel. Add too much and even a lightweight rifle starts feeling nose-heavy.
2026 Silencer Summit Results: The Numbers Get Interesting
The 2026 Thunder Beast Silencer Summit tested more than 275 gun and suppressor combinations under controlled conditions. Suppressors were fired on common host rifles using the same instrumentation, ammunition types, microphone positions, and testing procedures. That makes the comparisons a lot more meaningful than manufacturer sound numbers recorded on different days, with different rifles, ammo, and equipment.
On the .300 Win Mag test, the Zero Gravity 30 produced a 135.86 dB peak reading at the shooter’s ear and 130.60 dBA. In our earlier analysis of the full Summit data, that put it fifth at the shooter’s ear by peak dB and fourth by the corresponding A-weighted measurement.
On .308, it did even better.
The Zero Gravity 30 measured 131.85 dB peak at the shooter’s ear and 126.50 dBA. Among roughly 50 suppressors tested on that host, it finished second in peak sound pressure at the shooter’s ear and near the top of the field overall.
Its average muzzle measurement on .308 was 133.3 dBA.
Airlock Zero Gravity 30 vs. the 2026 Silencer Summit
| Weight Class | .308 Win. | .300 Win. Mag. |
|---|---|---|
| ≤10 oz | #1 across all 6 metrics | #1 across all 6 metrics |
| ≤15 oz | #1 in 4 of 6 | #1 in 2 of 6 |
| All Suppressors | #1 muzzle dBA, #2 ear peak dB | #3 muzzle dBA, #4 ear dBA, #5 ear peak dB |
When Every Ounce Matters, the Zero Gravity 30 Pulls Ahead
This is the part of the Summit data that matters most to me as a hunter.
Some suppressors were quieter than the Airlock, but they were also much larger and heavier. One of the quietest competitors in the .300 Win Mag test weighed 24 ounces and measured 10.7 inches long.
That’s more than three times the weight of the Zero Gravity 30.
When I previously sorted the Summit data specifically for hunting, I looked at suppressors tested on both .308 and .300 Win Mag and compared sound performance, weight, and length together.
The Zero Gravity 30 finished first.
I also changed the weighting several different ways instead of using one formula that happened to favor it. It kept coming out on top. Among suppressors weighing 10 ounces or less, it dominated the .308 and .300 Win Mag data.
That’s really the point here. The Airlock isn’t just light. There are other lightweight cans. What makes it stand out is that it gives up surprisingly little in sound performance to suppressors that weigh a whole lot more.
.300 PRC Test: How the Zero Gravity 30 Sounds Behind the Rifle
I tested the Zero Gravity 30 on a .300 PRC using Hornady’s 225-grain ELD Match load. I think it sounds phenomenal and was completely comfortable shooting it with no hearing protection.
That is my subjective impression from this test, not a guarantee that a suppressed .300 PRC is hearing-safe under every condition.
The Ultralight Titanium Tradeoff: Heat Comes Fast
There is a tradeoff with anything this light.
The Zero Gravity 30 doesn’t have a bunch of extra material to soak up heat. After several .300 PRC rounds, I could already see a fair amount of mirage coming off it. That isn’t really a problem for a hunting suppressor. It just means you need to use it for what it was built for.
Airlock currently rates the Zero Gravity 30 at 30 rounds per minute, with no more than one round per second, followed by a cooling period. They also specify that it should never exceed 800 degrees Fahrenheit.
Zero Gravity 30 Pros and Cons: Where It Wins and Where It Doesn’t
- Pros: Just 7.5 oz, only 6 inches long, strong .308 and .300 Win Mag Summit performance, excellent balance for a hunting rifle, 3D-printed titanium construction.
- Cons: Some larger suppressors are quieter, titanium heats quickly, visible mirage can develop after several .300 PRC rounds, and it is not intended for sustained high-volume fire.
Airlock Zero Gravity 30 Verdict: Built for Hunters Who Count Ounces
There are suppressors that are quieter. There are suppressors that are lighter. There are suppressors that are shorter. The Zero Gravity 30 just does a very good job of balancing all three.
At 7.5 ounces and 6 inches long, it doesn’t add much weight or length to a hunting rifle, yet the 2026 Silencer Summit data puts its sound performance right there with suppressors that are much larger and heavier. It’s not built for mag dumps or sustained high-volume fire. It’s built for hunters who want to keep a rifle light, short, and balanced without giving up much in sound suppression.
Based on the Summit numbers and my own shooting so far, I think Airlock got that combination right.
Related Reads from GunsAmerica Digest
- Best Suppressors of 2026
- Airlock Zero Gravity 6.5 Review: This 5.6-Ounce Can Humiliated Bigger Cans
- How to Choose a Suppressor
Learn More About the Airlock Zero Gravity 30
Learn more about the Airlock Industries Zero Gravity 30:
https://airlockindustries.com/products/zero-gravity-30-cal
See the complete 2026 Thunder Beast Silencer Summit results:
https://thunderbeastarms.com/sound/summit2026/
As the Editor-in-Chief of GunsAmerica, Hunt365, Decoding Darkness, and Suppressor Academy, True Pearce brings a rare blend of legal expertise, competitive shooting credentials, and deep hunting knowledge to the forefront of the firearms world. A former professional sponsored 3-Gun and Multigun competitor with multiple championships and titles, True’s shooting career began in long-range and tactical sniper matches—and he still burns powder in precision competitions, now branching into Hunter NRL.
A certified firearms instructor who has trained over 10,000 students face-to-face, True has also served on both sides of the courtroom as an attorney and currently as an elected Prosecuting Attorney. He has prosecuted and defended high-profile self-defense and firearms cases, giving him a unique, real-world perspective on the Second Amendment.
Outside the courtroom and off the range, True is a true western outdoorsman. A lifelong hunter and rancher, he rides and hunts off his own string of horses and pack animals, chasing elk, mule deer, wolves, coyotes, and anything else in season. He’s a longtime reloader, producing both precision rifle ammo and, back in the day, handloading over 40,000 rounds of 9mm and 5.56 annually for competition.
He’s also a thermal and night vision expert, known for his obsession with high-end optics, and is rarely found without a camera or a guitar nearby. Whether he’s glassing a distant ridge, reviewing cutting-edge gear, or deep in legal research, True brings passion, precision, and grit to everything he does.
Experience:
– Professional Shooter – Sponsored 3-Gun & Multigun competitor with multiple titles and a foundation in long-range and sniper/tactical matches.– Firearms Instructor – Certified instructor with over 10,000 students trained face-to-face.– Elected Prosecuting Attorney – Attorney with real-world experience defending and prosecuting self-defense and gun-related cases.– Hunter & Rancher – Horseback hunter with a working ranch, passionate about elk, deer, predator, and backcountry hunting.– Reloading & Ballistics Expert – Precision reloader and former high-volume competition handloader.– Optics Authority – Known for his deep knowledge and unrelenting standards in optics, thermal, and night vision gear.– Outdoor Creative – Avid photographer, guitar player, and outdoorsman with a sharp eye for gear and storytelling.– 2A Advocate – Committed to protecting the Second Amendment and educating Americans about their rights and responsibilities.