Otter Creek Labs Suppressors: Full Lineup, History & Buying Guide
Otter Creek Labs suppressors are built in London, Kentucky, by a company founded by Andrew King and his co-founder after the pair started building in-house.
In This Article
Originally published: October 5, 2026
If you’ve spent time in Form 1 and Form 4 suppressor forums, Otter Creek Labs is a name that comes up constantly — usually attached to a Polonium can someone bought because it was hundreds of dollars cheaper than a comparable model from a bigger brand. This guide breaks down who the company actually is, what’s currently in its lineup, and what to weigh before buying one of their suppressors.
Who Is Otter Creek Labs?
Otter Creek Labs was started by Andrew King and a co-founder, John, after the two were introduced by a mutual friend. Both were building suppressors for personal use under the ATF’s Form 1 “make your own” process before deciding to go commercial — they got their FFL/SOT and, as Andrew has described it, began making suppressors “on the weekend or whenever we had time off from work.” John brought a mechanical engineering background in robotics and automation (he previously worked at Neff Robotics), while Andrew came from an automotive background at Toyota and a deep interest in suppressors themselves. Both founders funded the startup personally — John took out a business loan and Andrew maxed out a credit card. The company’s name honors Andrew’s grandfather, who attended Otter Creek school in Kentucky.
The company is headquartered and manufactures in London, Kentucky. Its earliest products were DIY suppressor jigs and tools sold through a side venture called Quell Tech, before the debut PR30 line and the OCM5 — a more affordable take on the well-regarded Allen Engineering AEM5 — put Otter Creek Labs on the radar of the Form 1 and precision-rifle communities. What started as a weekend project has since grown into a full-time operation running two buildings with six employees, manufacturing most of its products in-house rather than outsourcing production.
2026: A Small Manufacturer in a Booming Market
The elimination of the $200 federal NFA tax stamp in 2026 set off a surge across the entire suppressor industry — more than 845,000 suppressor applications were submitted between January and May 2026 alone, with June 2026 background checks up 177% over June 2025, according to GunsAmerica. That demand wave has hit small, largely in-house manufacturers like Otter Creek Labs differently than it’s hit the industry’s largest players — production capacity, not marketing reach, tends to be the bottleneck for a six-employee shop.
Otter Creek Labs has kept releasing new hardware through the surge rather than sitting still. In July 2026 the company launched the OCM6, a second-generation successor to its original OCM5, combining a 3D-printed Inconel 718 core with a machined titanium exterior to cut weight by roughly 24% versus the outgoing model while staying backward-compatible with existing OPS/AE and OCM5 mounts, as reported by AttackCopter. Given the ongoing demand spike, checking current lead times directly with a dealer before ordering is more important than usual — see our guide to buying a suppressor for the full process.
The Full Otter Creek Labs Lineup
Otter Creek Labs’ catalog is smaller than the biggest suppressor brands, but it spans rimfire, 9mm/PCC, compact 5.56, multi-caliber .30-class, and lightweight precision-rifle cans. Nearly every model uses the 1.375×24 HUB thread pattern for quick-detach mounting compatibility. Here’s the current lineup:
| Category | Model | Caliber | Notable Feature |
|---|---|---|---|
| Rimfire | Titanium 22 | .22 LR (full-auto); 5.7x28mm, .17 HMR, .22 Mag (semi-auto) | 3 oz, user-serviceable tabbed baffles; limited production run |
| Pistol / PCC (9mm) | Lithium | 9mm (also rated for 300 BLK, .357 Mag, .350 Legend, 5.56, .308 w/ restrictions) | 5.7 oz Grade 5 titanium, among the lightest 9mm cans available |
| Milkman | 9mm | Low-back-pressure design for blowback AR9/MP5-style hosts | |
| Compact 5.56 / 6mm (K-Can) | Polonium | 5.56 NATO / 6mm hosts | 13.5 oz 17-4 stainless, integrated flash hider, entry price point |
| Polonium-K | 5.56, .223, 6 ARC, 6 Creedmoor, 6 Dasher, .243 Win | Tubeless CNC-welded H900 stainless, internal + external flash hiding | |
| Infinity 556K | 5.56 NATO / 6mm | Single-piece DMLS Haynes 282 nickel-cobalt superalloy, swappable end caps | |
| OCM6 | 5.56, 6 ARC, 6 Dasher, 6 Creed, .243 Win | 2nd-gen hybrid titanium/3D-printed Inconel; backward-compatible with OCM5 mounts | |
| Multi-Caliber / .30 Class | Polonium-30 | 5.56 through .300 Norma Magnum | 1.375×24 HUB, compact 5.8″ length, flash-hiding end cap |
| Infinity 7.62 | 5.56, 6mm, 6.5mm, 7mm, 7.62mm, subsonic 300 BLK | DMLS Inconel 718, belt-fed capable, three interchangeable end caps | |
| Universe-36 | Any cartridge .36 cal or smaller | Inconel DMLS, swappable low/high-backpressure end caps | |
| Lightweight Hunting / PRS | Hydrogen K | 7.62 bore, up to .300 Norma Magnum | 6.7 oz tubeless titanium, +10% baffle surface area for heat dissipation |
| Hydrogen S | 6.5mm and 7.62mm | Under 10 oz, full-auto and magnum rated | |
| Hydrogen L | 6.5mm and 7.62 NATO | Longest Hydrogen variant, magnum-capable to .300 RUM/Norma on 24″ barrels |
Model availability and specs current as of publish date — always confirm the latest configuration and pricing directly with Otter Creek Labs or an authorized dealer before buying.
Notable Models Worth a Closer Look
Polonium-30 – The Brand’s Signature Value Can
The Polonium line is what put Otter Creek Labs on the map, and the Polonium-30 is the multi-caliber version — rated from 5.56 up through .300 Norma Magnum in a 13.5-ounce, 5.8-inch 17-4 stainless steel package. It’s the model most often cited as the entry point into the brand: a full-auto-rated, HUB-compatible can at a price meaningfully below comparable multi-caliber suppressors from larger manufacturers.
Infinity 7.62 – The Top-Tier DMLS Build
The Infinity 7.62 is Otter Creek Labs’ flagship precision build, 3D-printed from Inconel 718 with H900 17-4 stainless end caps. It covers everything from 5.56 to subsonic .300 Blackout in one 20-ounce can, ships with three interchangeable end caps for tuning backpressure, and is rated belt-fed capable — 300 rounds continuous on 5.56 or 200 on 7.62 before a cooldown is required. Silencer Shop launched it as an exclusive release, calling it “another big step forward” for the brand.
Lithium – One of the Lightest 9mm Cans on the Market
At 5.7 ounces without a mount, the Lithium is built from CNC-welded 6Al-4V Grade 5 titanium in a tubeless design, and it’s marketed specifically toward reducing blowback and port pop on direct-blowback 9mm hosts like the MP5 and Stribog. Independent PEW Science testing measured a composite suppression rating of 55.4 on an HK SP5 with subsonic ammunition.
OCM6 – The Newest Release, Built on a Legacy Platform
The OCM6, launched in July 2026, replaces the original OCM5 — itself a more accessible take on the Allen Engineering AEM5 that built Otter Creek Labs’ early reputation in the clone-can community. The new version combines a 3D-printed Inconel 718 core with a machined titanium shell, trimming about 24% of the weight compared to the OCM5 while remaining compatible with existing OPS/AE and OCM5 mounts.
Universe-36 – One Can for Nearly Any Rifle
The Universe-36 is built from DMLS Inconel and rated for any cartridge .36 caliber or smaller that fits down the bore — from rimfire up through large magnum rounds. Its swappable end-cap system lets a shooter tune between low- and high-backpressure configurations for different hosts using nothing more than a standard wrench, which makes it one of the more actually multi-purpose cans in the lineup.
Buying Otter Creek Labs Suppressors: What to Check First
- HUB mounting ecosystem: Most Otter Creek Labs cans use the 1.375×24 HUB thread pattern, which is compatible with a wide range of third-party quick-detach mounts (Dead Air, SilencerCo, Q’s Plan-B, and others) — but always confirm your specific mount before ordering. See our guide to suppressor mounting systems.
- Material tradeoffs: The lineup spans 17-4 stainless steel (Polonium series), titanium (Hydrogen, Lithium, Milkman, Titanium 22), and DMLS 3D-printed Inconel (Infinity, Universe-36, OCM6) — steel is the cheapest and heaviest, titanium and Inconel cost more but cut weight significantly.
- Smaller dealer network and lead times: As a six-employee, in-house manufacturer, Otter Creek Labs doesn’t have the production scale of the largest suppressor brands, and the 2026 demand surge has stretched lead times industry-wide — confirm current stock and wait estimates with a dealer before buying.
- Full-auto and temperature ratings vary by model: Some models, like the Hydrogen K, carry temperature-limited full-auto ratings rather than unrestricted sustained-fire ratings — check the specific model’s documentation if you’re building a rig for extended strings of fire.
- OCM5/OCM6 mount compatibility: If you already own OPS/AE-compatible mounts from the Allen Engineering AEM5 clone ecosystem, the OCM6 is designed to work with them, which can save money versus starting a mount system from scratch.
Frequently Asked Questions About Otter Creek Labs
Is Otter Creek Labs a good suppressor brand?
Otter Creek Labs has built a solid reputation in the Form 1 and precision-rifle communities, growing from a weekend hobby business into a six-employee, two-building operation manufacturing most of its products in-house. Its Polonium line in particular is well regarded for delivering full-auto-rated performance at a lower price point than many larger competitors.
What is Otter Creek Labs known for?
The brand is best known for its Polonium line of affordable, full-auto-rated suppressors and for its OCM5/OCM6 platform, which offers a more accessible alternative to the popular Allen Engineering AEM5 within the same HUB-compatible mount ecosystem.
Where are Otter Creek Labs suppressors made?
Otter Creek Labs is headquartered and manufactures in London, Kentucky, where the company machines and, for newer Inconel and titanium models, 3D-prints most of its own components in-house.
What’s the newest Otter Creek Labs suppressor?
As of publish date, the newest release is the OCM6, launched in July 2026 as a lighter, 3D-printed Inconel/titanium hybrid successor to the original OCM5, while remaining compatible with existing OPS/AE and OCM5 mounts.
How does Otter Creek Labs compare to HUXWRX?
Otter Creek Labs built its reputation on durable, competitively priced stainless and Inconel/titanium hybrid cans favored by law enforcement and duty users. HUXWRX takes a different engineering approach with its Flow-Through technology, which vents gas forward to reduce back pressure and toxic blowback on gas guns. OCL tends to win on price-to-durability ratio; HUXWRX’s advantage is its back-pressure and gas-management engineering. See our HUXWRX suppressors guide for the full lineup.
Related guides: See our complete suppressor manufacturer directory for how Otter Creek Labs compares to other brands, our guide to suppressor mounting systems before choosing a HUB-compatible mount, and our guide to buying a suppressor for the current ATF process. Running a 9mm host like an MP5 clone or AR9? Popular Outdoorsman’s review of Winchester Super Suppressed 9mm subsonic ammunition pairs well with a Lithium or Milkman build. For our full 9mm suppressor lineup comparison, see our best 9mm suppressors guide. Considering the Titanium 22 for a rimfire host? See our best rimfire suppressors guide and best titanium suppressors guide for how it stacks up.
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