For carriers who want black styling on a proven CobraTec frame, the CobraTec FS-3 Medium 3-inch Black Tanto OTF Knife delivers the FS-3 line’s usual speed and fit (CobraTec part no. MBFS-3TNS). It pairs a 3-inch tanto blade in D2 tool steel with aluminum alloy construction, sized for medium-frame carry. Deployment is dual-action out-the-front (OTF) — the same control switch both deploys and retracts the blade. It suits everyday carry, hunting camp chores, or a fast-access utility role equally well.

Key Specifications

• The blade measures 3-inch, sized for everyday carry and quick, decisive cuts.
• It carries a Tanto blade profile, built for added tip strength on tougher materials.
• The edge is a plain edge, good for push cuts and fine detail work.
• The blade is machined from D2 tool steel, chosen for a strong balance of edge retention and corrosion resistance.
• Deployment is dual-action out-the-front (OTF) — the same control switch both deploys and retracts the blade.
• The handle is built from aluminum alloy for a rigid, durable grip.
• It’s finished in Black, giving this specific build its own look on an otherwise identical frame.
• It includes a built-in glass breaker tip for emergency escape use.
• A reversible pocket clip is included for left- or right-side carry.
• A nylon sheath ships with the knife for an alternate carry option.
• Open, the knife runs 8-inch overall.
• Closed, it measures 5-inch for pocket or sheath carry.

Frequently Asked Questions

Is this an OTF knife? Yes. The FS-3 line is a dual-action out-the-front knife — the same switch fires the blade forward and pulls it back in.

What steel is the blade? It’s D2 tool steel, chosen for edge retention and corrosion resistance.

Buy the CobraTec FS-3 Medium 3-inch Black Tanto OTF Knife

Pick up the CobraTec FS-3 Medium 3-inch Black Tanto OTF Knife from our Lubbock, Texas team for fast, direct shipping — built by CobraTec for carriers who actually use their knives. See the full CobraTec Knives lineup or browse more automatic knives from Schaefer Defense.