Collection: Rivery Manufacturing Zero & Zero-G USA-Made Manual OTF Utility Knives

Rivery Manufacturing is an American CNC machine shop in Sevierville, Tennessee that builds the Zero and Zero-G — manual OTF (out-the-front) utility knives machined entirely in the USA. Founded by mechanical engineer Michael Sayers, Rivery makes every part in-house from 6061 aluminum. Both knives take standard SK5 utility blades, change blades with no tools, and are fully user-serviceable. Prices run $70 for a standard Zero to $250 for a CadLab CNC signature-finish Zero-G.

Going Gear stocks the complete Rivery lineup — every Zero pattern, the full Zero-G range, CadLab collaborations, and replacement parts.

The Zero — $70

The original. Manual OTF action, 6061 aluminum, lanyard hole, magnetic blade retention.

• Zero Original Pattern — the pattern that started it, 4.84 stars across 129 reviews

• Zero Smooth Operator — no texture, clean and seamless

• Zero File Pattern — machined file-tooth texture for grip

• Zero Grenade Pattern — deep cross-hatch, maximum purchase

• Zero Knurled Pattern — classic diamond knurl

• Zero Custom Combinations — mix and match lid and base colors

Specs: 2.099 oz (59.51 g) · 68 mm closed · 88 mm open · 6061 aluminum, anodized

The Zero-G — $125 to $250

The next evolution: a larger frame, refined click mechanics, a winged carriage on its own rail, and a flush pivot pocket clip that sits seamlessly against your pocket. Ships with a clip removal tool.

• Zero-G Original 6061 Aluminum — $125

• Zero-G Smooth Operator 6061 Aluminum — $125

• Zero-G Cryo Matter (CadLab CNC) — $250

• Zero-G Nebula (CadLab CNC) — $250

• Zero-G Blood Spatter (CadLab CNC) — $250

• Zero-G Blade Stow Lid Kit — $95

Specs: 2.575 oz (73.0 g) Original / 2.54 oz (72.0 g) Smooth Operator · 94 mm closed · 135.5 mm open

CadLab CNC Signature Finishes — $76 to $250

Rivery's collaboration with CadLab CNC — hand-finished anodizing you won't find on the standard line.

• Zero Purple — CadLab CNC — $95

• Zero Green — CadLab CNC — $95

• Zero CadLab Custom Combinations — $76

• Zero BLEM — Purple, Blue, Green, Red — $76 (cosmetic seconds, full function, down from $95)

• Zero-G Cryo Matter, Nebula, Blood Spatter — $250

Parts & Accessories

• Zero Knife Parts Kit — $18 — springs, key, and pin

• Zero Knife Spring Replacement Set — $15

• Hollow Lanyard Bead — from $15

• KPL Knife Pivot Lube, Ultra-Lightweight — $16.99 — Rivery's recommended oil

Frequently Asked Questions

What blades fit the Rivery Zero?

The Zero takes standard SK5 utility blades. Rivery confirms compatibility with Workpro SK5 (61 mm), Dewalt Carbide Edge, Rapid Edge Serrated, Milwaukee, Titan, Berkling SK2h Black, Jet SK5 Titanium Coated, Stanley 11-800L, and selected generic SK5 blades.

Not compatible with the Zero: Fiskars blades and ceramic blades.

SK5 blades vary in tolerance. If a blade is too short it can catch the interior wall and block deployment — slide a second blade underneath as a ramp to free it.

What blades fit the Rivery Zero-G?

The Zero-G takes everything the Zero does — Workpro SK5, Dewalt Carbide Edge, Rapid Edge Serrated, Milwaukee, Titan, Berkling SK2h Black, Jet SK5 Titanium Coated, Stanley 11-800L, generic SK5 — plus Fiskars and US-made blades.

Not compatible: ceramic blades only.

Broader blade compatibility is one of the practical upgrades the Zero-G brings over the original.

How do you change the blade on a Rivery Zero?

No tools required — just your hands and the knife. Hold down the carriage, then pull the blade from the top side to shear the magnetic force holding it in place. On the Zero-G the carriage is winged and rides its own rail, so it stays put on its own, though you can steady it with a finger the same way.

Is the Rivery Zero an automatic knife?

No. The Zero is a manual OTF — you slide the lid fully up to deploy and fully down to retract, using your fingers for both. There is no spring or button-driven automatic action. The slider does not return on its own; magnets guide it back into place. It's a utility knife with a replaceable blade, not a switchblade. Knife laws vary by state and municipality, so check your local regulations.

What is the difference between the Rivery Zero and the Zero-G?

The Zero-G is the larger, newer evolution of the Zero.

The Zero-G also has refined click mechanics. The main spring is shared between both knives, so replacement springs are universal.

Can you use the Rivery Zero left-handed?

Yes. Both the Zero and Zero-G work for left-handed users — Rivery publishes a video walkthrough showing how.

Where are Rivery knives made?

In Sevierville, Tennessee, in the foothills of the Great Smoky Mountains. Every component is machined, finished, and assembled in the USA — Rivery does not outsource production overseas.

What is Rivery Manufacturing?

Rivery Manufacturing is a CNC machine shop in Sevierville, Tennessee that produces the Zero and Zero-G manual OTF utility knives. It began in April 2019 as Rivery CNC, founded by Michael Sayers, and became Rivery Manufacturing in January 2024 when it launched the Zero.

Who owns Rivery Manufacturing?

Michael Sayers is the founder, CEO, and design lead. He spent his career in mechanical engineering and holds 13 patents. The name "Rivery" comes from combining the names of his two daughters. Ryan Watson serves as Operations Manager.

What is the Rivery warranty?

Rivery will service or replace the Zero as needed. If the failure is a manufacturing defect, repair or replacement is free. For damage from mishandling or extreme use, most simple repairs cost only shipping plus the at-cost price of any parts required. Knives sent in for reassembly that are free of damage are charged shipping only. Rivery does not service counterfeit products.

Why does the lid come off my Zero?

That's by design, not a defect. The knife is built to come apart so it can't be permanently bricked if a blade breaks or the lid closes without a blade installed. The tradeoff: heavy fidgeting — repeated forward racking — makes it more likely to pop apart. Manufacturing variance in the pin and chamfer means some units disassemble more easily than others.

What oil should I use on a Rivery Zero?

Rivery recommends KPL Ultra-Lightweight knife pivot lube, though any lightweight knife oil or mineral oil works. Heavier oils dampen the click and reduce the fidget factor. Oil the rail mating surfaces, carriage walls, pin, and key — only after a deep clean or when needed.

Can you rebuild a Rivery Zero?

Yes. Rivery sells a Parts Kit ($18) with springs, key, and pin, plus a standalone Spring Replacement Set ($15). The knife is designed to be disassembled and serviced rather than discarded, and the main spring is shared across the Zero and Zero-G.

What is a Rivery BLEM?

A BLEM is a cosmetic second — a minor finish flaw that doesn't affect function. Rivery discounts them from $95 to $76. Mechanically identical to first-quality.

Why does my Rivery knife look different from the photos?

Anodizing is an electrochemical process, not paint, so color and tone vary slightly between batches and pieces. These variations are normal and not defects. Rivery's "WORN" finishes are a deliberate aged look applied by hand, so intensity varies piece to piece.

What is CadLab CNC?

CadLab CNC is Rivery's collaboration partner for signature anodized finishes — Cryo Matter, Nebula, and Blood Spatter on the Zero-G, and the purple and green finishes on the Zero.

Is Going Gear an authorized Rivery dealer?

Yes. Going Gear is an authorized Rivery Manufacturing dealer, so every knife we sell is genuine factory production covered by Rivery's manufacturer warranty — not gray-market or counterfeit stock. Rivery declines to service counterfeit products, so buying from an authorized dealer matters.

About Rivery Manufacturing

Michael Sayers founded Rivery CNC in April 2019 in Sevierville, Tennessee, after a mechanical engineering career that produced 13 patents. He started with a single mill, machining fidget and EDC products entirely in America and funding early runs through Kickstarter.

The shop grew into a full job shop — firearm parts, automotive components, government contract work — before Sayers turned the machines toward a product of his own. In January 2024, Rivery CNC became Rivery Manufacturing and released the Zero, a haptic manual OTF utility knife that found its audience fast. Teamed with Ryan Watson on operations, the company has grown its staff by 200% and now sells internationally.

The appeal is straightforward: a real machine shop making a real tool, in Tennessee, without the corners that would make it cheaper.

Why Buy Rivery from Going Gear

Going Gear is an authorized Rivery Manufacturing dealer. Every knife is genuine factory production, covered by Rivery's warranty, and inspected before it ships.

Rivery runs limited batches and sells out constantly — at time of writing, every Zero-G on Rivery's own site is out of stock. We carry the full lineup, list live inventory, and ship fast.

Browse the complete Rivery Manufacturing collection above.