The CobraTec Large FS-3 dual-action OTF knife (brand part no. LBFS-3TNS) is a fully automatic out-the-front folder built by CobraTec Knives around a 3.5-inch tanto blade in D2 tool steel. A single side-mounted button both fires and retracts the blade, giving fast, reliable deployment with one hand. The black 6061-T6 aluminum handle is ambidextrous, with a switchable pocket clip and a built-in glass breaker at the pommel for emergency use. Backed by CobraTec’s lifetime warranty and shipped with a nylon sheath, this knife is built for the EDC carrier who wants a rugged, tactical-style tanto with true dual-action operation.

Key Specifications

• The blade measures 3.5 inches long, giving substantial cutting length for a tactical folder.
• The blade is made from D2 tool steel with a satin finish for strong edge retention.
• The blade uses a tanto shape, known for a reinforced tip that resists chipping on hard use.
• The handle is built from 6061-T6 aluminum alloy for a lightweight, rugged grip.
• Deployment is dual-action out-the-front, with the same side button firing and retracting the blade.
• The knife includes an integrated glass breaker at the pommel for emergency situations.
• The pocket clip is ambidextrous, switchable to either side for left- or right-hand carry.
• CobraTec backs the knife with a lifetime warranty against defects.

Frequently Asked Questions

What does dual-action mean on this knife? The same side button both deploys and retracts the blade, unlike single-action OTFs that use separate controls.

Does it come with a sheath? Yes, it ships with a nylon sheath for carry options beyond the pocket clip.

Is the Large FS-3 an automatic knife? Yes, it’s a fully automatic OTF, which is restricted in some states and municipalities, so check your local laws before ordering.

Shop more from Cobratec Knives in our hunting knives category.

Buy the CobraTec Large FS-3 3.5-Inch Dual-Action OTF Knife – Black Tanto

The Large FS-3 pairs a hard-use D2 tanto blade with a fast, dependable dual-action mechanism, backed by a lifetime warranty from CobraTec. It’s a solid step up for anyone who wants more blade and more capability from their OTF. Order it from our Lubbock, Texas gun shop for fast, insured shipping.