The Böker Heckler & Koch FX03 (brand part no. 124503) is a sub-compact fixed blade tanto built to meet the functional demands of a modern military and law enforcement knife. The tanto blade is ground from powder metallurgy MagnaCut steel, a modern alloy that balances edge retention, toughness, and corrosion resistance more evenly than older powder steels thanks to its carefully tuned chromium content. A black coating on the blade cuts down on reflection for low-visibility carry. The offset handle and integrated thumb guard direct cutting force straight into the edge while keeping fingers clear, and the fiber-reinforced nylon handle scales carry HK’s current pistol-grip texture for a sure hold in any weather. A slim one-piece folded Kydex sheath grips the blade securely without an added lock, and the included spring steel clip lets you carry it in a waistband or pocket, with mounting eyelets open to other adapters like a Tek-Lok. This is a genuine Böker-built HK knife for concealed, everyday duty carry. Check out our broader fixed blade knives collection while you’re at it.

Key Specifications

• The tanto blade profile gives this sub-compact fixed blade a reinforced tip for piercing and hard use.
• Blade steel is powder metallurgy MagnaCut, built to balance edge retention, toughness, and corrosion resistance.
• A black coating on the blade minimizes reflection for discreet carry.
• An offset handle with thumb guard improves control and directs force into the cutting edge.
• Handle scales are fiber-reinforced nylon (FRN) with HK’s signature pistol-grip texture.
• The one-piece folded Kydex sheath holds the blade securely with no separate locking mechanism.
• Includes a spring steel clip for waistband or pocket carry, plus mounting eyelets for adapters like a Tek-Lok.

Frequently Asked Questions

What steel is the FX03 blade made from? Powder metallurgy MagnaCut, chosen for its balance of edge retention, toughness, and corrosion resistance.

How is it carried? In a low-profile Kydex sheath with a spring steel clip, with eyelets for other belt or waistband adapters.

Is this a full-size knife? No, it is a sub-compact fixed blade designed for concealed, everyday duty carry.

Buy the Böker Heckler & Koch FX03 Sub-Compact Fixed Blade

Built to modern military and law enforcement standards, the HK FX03 pairs premium MagnaCut steel with a discreet carry system. Order it from our Lubbock, Texas gun shop for fast, insured shipping.