The CobraTec Large FS-3 OTF Automatic Knife in Blackout American Flag (brand part no. LBOUSAFS3TNS) scales the FS-3 platform up to its largest size and swaps the drop-point profile for a tanto blade built for tip strength. CobraTec machines the tanto blade from D2 tool steel, houses it in a high-grade aluminum alloy handle finished in a Blackout American Flag Cerakote pattern, and adds a glass breaker at the handle’s end for emergency use. Among our automatic knives, the Large FS-3 suits carriers who want the biggest blade in the FS-3 line along with a genuine glass-breaker tip.

Key Specifications

• The blade is a tanto design, built for a strong point.
• The blade steel is D2 tool steel for strong edge retention.
• The blade length is 3.5 inches.
• The edge is a plain, non-serrated edge.
• The deployment mechanism is a dual action OTF (out-the-front) top-button trigger.
• The handle material is high-grade aluminum alloy.
• The handle finish is Blackout American Flag Cerakote.
• The overall length is 9 inches, including a glass breaker at the handle’s end.
• The weight is approximately 7.8 ounces.

Frequently Asked Questions

Why choose the tanto blade over the standard drop point? A tanto’s reinforced tip geometry holds up better to piercing and prying tasks than a traditional drop point.

What is the glass breaker for? It’s a hardened point built into the handle’s end for breaking a vehicle window in an emergency.

Is the edge serrated? No, this listing has a plain, non-serrated edge.

Buy the CobraTec Large FS-3 OTF Automatic Knife

The biggest blade in CobraTec’s FS-3 line, this Large tanto model pairs D2 steel with a genuine glass breaker in a Blackout American Flag finish. Order it from our Lubbock, Texas gun shop and we’ll get it to you as soon as it’s ready to ship.