Extrema Ratio MK2.1 Black Knife
Italian precision meets combat-proven heritage in the MK2.1 BLACK, a bold reinvention of the iconic Mark 2 fighting dagger. Since 1997, Extrema Ratio has been forging elite tools for military, law-enforcement and survival professionals. Today, the MK2.1 BLACK stands at the pinnacle of that legacy—a razor-sharp tribute to World War II valor, reimagined for modern missions.
Every MK2.1 BLACK blade is crafted from Böhler N690 cobalt steel, hardened to 58 HRC for exceptional edge retention and corrosion resistance. The flat grind and MIL-C-13924 burnished finish combine stealth with strength, ensuring every swing cuts clean and every thrust stands up to the harshest environments. At 6.3 mm thick, the blade delivers unstoppable rigidity without unnecessary bulk.
Beneath the armory-black blade, a glass-fiber-reinforced nylon handle guarantees a secure, fatigue-free grip in rain, mud or snow. Its ergonomic contours echo the original Mark 2 profile but are oversized for extra leverage and comfort under pressure. Weighing in at 393 g with a total length of 303 mm, the MK2.1 BLACK strikes the perfect balance between manageability and presence.
More than a knife, the MK2.1 BLACK is a mission partner. Its robust construction adapts to survival tasks, tactical breaching, field dressing or everyday carry—wherever you demand uncompromising performance. As the official blade supplier to the Italian and French Armed Forces, Extrema Ratio delivers proven reliability at a reasonable price, backed by attentive customer service and bespoke manufacturing upon request.
Whether you’re an outdoor enthusiast, a professional operator or a collector of military classics, the MK2.1 BLACK commands respect through unwavering quality and functional elegance. Embrace a knife that honors its storied past while excelling in today’s toughest scenarios.
Key Features
- Combat-proven design: Modern restyling of the legendary Mark 2 dagger
- Premium steel: Böhler N690 for razor-sharp, long-lasting edges
- Military finish: MIL-C-13924 burnishing for stealth and corrosion defense
- Oversized ergonomics: Secure grip under any conditions
- Glass-fiber handle: Lightweight yet virtually unbreakable
- Balanced weight: 393 g optimized for control and power
- Versatile use: Ideal for tactical, survival and outdoor tasks
- Armed-forces trusted: Official supplier to Italian & French military
Specifications
- Overall Length: 303 mm
- Blade Length: 177 mm
- Blade Thickness: 6.3 mm
- Blade Material: Böhler N690 Steel (58 HRC)
- Blade Finish: MIL-C-13924 Burnishing
- Grind: Flat
- Handle Material: Glass-Fiber-Reinforced Nylon
- Total Weight: 393 g
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