OTF stands for out-the-front — the blade deploys and retracts axially through an opening in the front of the handle rather than folding open like a conventional folder. On the Kershaw Livewire, push the slider on the spine forward to deploy the blade and push it back to retract. The blade locks positively when fully deployed and retracts cleanly on the return stroke. OTF knives are true automatic knives by legal definition and are subject to the same state and federal restrictions as side-button automatics. See the legality FAQ below before purchasing.

OTF automatic knives are subject to strict regulation under federal and state law. Under federal law, the interstate sale and transport of automatic knives — including OTF knives — is restricted. Knifeworks can only ship OTF automatics to buyers in states where automatic knives are legal to own and carry. State laws vary significantly: some states permit OTF automatics freely, some restrict blade length, some require permits or military or law enforcement status, and some prohibit them entirely. Knifeworks cannot provide legal advice. It is your responsibility to verify that OTF automatic knives are legal in your state, county, and municipality before purchasing. Check your local laws at akti.org (American Knife and Tool Institute) or call us at 888-225-9775 — we will not ship to addresses in states where OTF automatics are prohibited.

The 9000GRY and the baseline 9000 share the same CPM MagnaCut stonewash spear point blade, OTF deployment, and USA manufacture — the difference is the handle color. The 9000 uses black anodized aluminum for a carry-neutral all-dark profile. The 9000GRY uses gray anodized aluminum, which pairs with the matte stonewash blade in the same cool tonal register for a more unified two-tone rather than a blade-handle contrast. The gray variant sits between the all-black baseline and the colored anodize variants (pink, OD green, Merlot red, blue) in terms of visual statement — it is the most neutral of the non-black handle options. For a comprehensive view of the full Livewire series across all fifteen confirmed variants — colorway, blade geometry, and material options — each variant page lists the complete lineup.

CPM MagnaCut was designed by metallurgist Larrin Thomas and produced by Crucible Industries to outperform both CPM-S35VN and M390 in edge retention, toughness, and corrosion resistance simultaneously. In an OTF knife, edge retention keeps the blade deployment-ready through more carry cycles before maintenance. Toughness supports the blade cycling under spring tension with every deployment — the mechanical load of OTF actuation puts real stress on the blade steel, and a tougher steel resists chipping better than a harder but more brittle alternative. CPM MagnaCut's near-H1 corrosion resistance handles moisture from the OTF housing channel reliably. Most production OTF knives run 154CM or D2 — CPM MagnaCut is a significant step up in all three categories.

Stonewash CPM MagnaCut leaves the blade face as bare steel — no chemical conversion coating, no PVD layer. The stonewash texture hides fine surface scratches and diffuses light for a low-profile carry appearance. CPM MagnaCut's near-H1 corrosion resistance makes bare stonewash CPM MagnaCut significantly more tolerant of moisture exposure than bare stonewash D2 — a meaningful advantage in an OTF platform where the blade travels through a housing channel that accumulates moisture with daily carry. Wipe the blade dry after extended moisture exposure and apply a light coat of food-safe mineral oil before storage.

OTF knives require more regular maintenance than folding knives because the housing mechanism accumulates pocket lint, debris, and moisture with daily carry. Periodically blow out debris with compressed air and apply a light coat of thin oil to the blade and mechanism — a thin oil like Rem Oil or Sentry Solutions TUF-GLIDE works well without attracting additional debris. Avoid heavy oils that collect lint. The gray anodized aluminum handle can be wiped clean with a damp cloth — standard cleaners and isopropyl alcohol are safe on anodized aluminum. The CPM MagnaCut blade sharpens readily on ceramic rods or fine diamond stones.

Kershaw offers a lifetime warranty against defects in materials and workmanship. If the knife fails due to a manufacturing defect, Kershaw will repair or replace it at no charge. Warranty service is handled directly by Kershaw — not Knifeworks. Submit a claim through Kershaw's website at kershawknives.com with a description of the issue and proof of purchase. Normal wear, mechanism wear from sustained OTF cycling, cosmetic stonewash patina development, sharpening, and damage from misuse are not covered.

The Kershaw Livewire 9000GRY is manufactured in the USA at Kershaw's production facility in Tualatin, Oregon. Domestic manufacture is a consistent feature of the entire Livewire series. The 9000GRY carries the same CPM MagnaCut steel, USA production quality, and Kershaw Lifetime Warranty coverage as every other variant in the lineup.